Estimating the Twin prime constant












2












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On this website:



http://numbers.computation.free.fr/Constants/Primes/twin.html



it says:
"This last constant occurs in some asymptotic estimations involving primes and it's interesting to observe that it may be estimated using properties of the Riemann Zeta function to thousand of digits (Sebah computed it to more than 5000 digits)."



Can someone explain how you can use the Riemann zeta function to estimate the digits of the twin prime constant?










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$endgroup$








  • 1




    $begingroup$
    Did you try the reference? T. Nicely, Enumeration to $10^{14}$ of the Twin Primes and Brun's Constant, Virginia J. Sci., (1996), vol. 46, p. 195-204
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:39






  • 1




    $begingroup$
    Perhaps even better: trnicely.net/twins/twins2.html
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:41
















2












$begingroup$


On this website:



http://numbers.computation.free.fr/Constants/Primes/twin.html



it says:
"This last constant occurs in some asymptotic estimations involving primes and it's interesting to observe that it may be estimated using properties of the Riemann Zeta function to thousand of digits (Sebah computed it to more than 5000 digits)."



Can someone explain how you can use the Riemann zeta function to estimate the digits of the twin prime constant?










share|cite|improve this question











$endgroup$








  • 1




    $begingroup$
    Did you try the reference? T. Nicely, Enumeration to $10^{14}$ of the Twin Primes and Brun's Constant, Virginia J. Sci., (1996), vol. 46, p. 195-204
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:39






  • 1




    $begingroup$
    Perhaps even better: trnicely.net/twins/twins2.html
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:41














2












2








2





$begingroup$


On this website:



http://numbers.computation.free.fr/Constants/Primes/twin.html



it says:
"This last constant occurs in some asymptotic estimations involving primes and it's interesting to observe that it may be estimated using properties of the Riemann Zeta function to thousand of digits (Sebah computed it to more than 5000 digits)."



Can someone explain how you can use the Riemann zeta function to estimate the digits of the twin prime constant?










share|cite|improve this question











$endgroup$




On this website:



http://numbers.computation.free.fr/Constants/Primes/twin.html



it says:
"This last constant occurs in some asymptotic estimations involving primes and it's interesting to observe that it may be estimated using properties of the Riemann Zeta function to thousand of digits (Sebah computed it to more than 5000 digits)."



Can someone explain how you can use the Riemann zeta function to estimate the digits of the twin prime constant?







number-theory prime-numbers prime-twins






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edited Dec 17 '18 at 10:37









Klangen

1,73711334




1,73711334










asked May 14 '14 at 17:37









user146828user146828

284




284








  • 1




    $begingroup$
    Did you try the reference? T. Nicely, Enumeration to $10^{14}$ of the Twin Primes and Brun's Constant, Virginia J. Sci., (1996), vol. 46, p. 195-204
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:39






  • 1




    $begingroup$
    Perhaps even better: trnicely.net/twins/twins2.html
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:41














  • 1




    $begingroup$
    Did you try the reference? T. Nicely, Enumeration to $10^{14}$ of the Twin Primes and Brun's Constant, Virginia J. Sci., (1996), vol. 46, p. 195-204
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:39






  • 1




    $begingroup$
    Perhaps even better: trnicely.net/twins/twins2.html
    $endgroup$
    – Matthew Conroy
    May 14 '14 at 17:41








1




1




$begingroup$
Did you try the reference? T. Nicely, Enumeration to $10^{14}$ of the Twin Primes and Brun's Constant, Virginia J. Sci., (1996), vol. 46, p. 195-204
$endgroup$
– Matthew Conroy
May 14 '14 at 17:39




$begingroup$
Did you try the reference? T. Nicely, Enumeration to $10^{14}$ of the Twin Primes and Brun's Constant, Virginia J. Sci., (1996), vol. 46, p. 195-204
$endgroup$
– Matthew Conroy
May 14 '14 at 17:39




1




1




$begingroup$
Perhaps even better: trnicely.net/twins/twins2.html
$endgroup$
– Matthew Conroy
May 14 '14 at 17:41




$begingroup$
Perhaps even better: trnicely.net/twins/twins2.html
$endgroup$
– Matthew Conroy
May 14 '14 at 17:41










1 Answer
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1












$begingroup$

There exists a formula that gives a series with accelerated convergence for the twin prime constant, due to Flajolet and Vardi (1996). If we denote the twin prime constant by $Pi_2$, we have:



$$
Pi_2 = prod_{n=2}^{infty}left[zeta(n)(1-2^{-n})right]^{-I_n},
$$



where



$$
I_n=frac{1}{n}sum_{d|n}mu(d)2^{n/d}.
$$



The values of $I_n$ can be found in the OEIS as sequence A001037:
$$
I_n = 2, 1, 2, 3, 6, 9, 18, 30, 56, 99, ldots
$$






share|cite|improve this answer









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    1 Answer
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    1












    $begingroup$

    There exists a formula that gives a series with accelerated convergence for the twin prime constant, due to Flajolet and Vardi (1996). If we denote the twin prime constant by $Pi_2$, we have:



    $$
    Pi_2 = prod_{n=2}^{infty}left[zeta(n)(1-2^{-n})right]^{-I_n},
    $$



    where



    $$
    I_n=frac{1}{n}sum_{d|n}mu(d)2^{n/d}.
    $$



    The values of $I_n$ can be found in the OEIS as sequence A001037:
    $$
    I_n = 2, 1, 2, 3, 6, 9, 18, 30, 56, 99, ldots
    $$






    share|cite|improve this answer









    $endgroup$


















      1












      $begingroup$

      There exists a formula that gives a series with accelerated convergence for the twin prime constant, due to Flajolet and Vardi (1996). If we denote the twin prime constant by $Pi_2$, we have:



      $$
      Pi_2 = prod_{n=2}^{infty}left[zeta(n)(1-2^{-n})right]^{-I_n},
      $$



      where



      $$
      I_n=frac{1}{n}sum_{d|n}mu(d)2^{n/d}.
      $$



      The values of $I_n$ can be found in the OEIS as sequence A001037:
      $$
      I_n = 2, 1, 2, 3, 6, 9, 18, 30, 56, 99, ldots
      $$






      share|cite|improve this answer









      $endgroup$
















        1












        1








        1





        $begingroup$

        There exists a formula that gives a series with accelerated convergence for the twin prime constant, due to Flajolet and Vardi (1996). If we denote the twin prime constant by $Pi_2$, we have:



        $$
        Pi_2 = prod_{n=2}^{infty}left[zeta(n)(1-2^{-n})right]^{-I_n},
        $$



        where



        $$
        I_n=frac{1}{n}sum_{d|n}mu(d)2^{n/d}.
        $$



        The values of $I_n$ can be found in the OEIS as sequence A001037:
        $$
        I_n = 2, 1, 2, 3, 6, 9, 18, 30, 56, 99, ldots
        $$






        share|cite|improve this answer









        $endgroup$



        There exists a formula that gives a series with accelerated convergence for the twin prime constant, due to Flajolet and Vardi (1996). If we denote the twin prime constant by $Pi_2$, we have:



        $$
        Pi_2 = prod_{n=2}^{infty}left[zeta(n)(1-2^{-n})right]^{-I_n},
        $$



        where



        $$
        I_n=frac{1}{n}sum_{d|n}mu(d)2^{n/d}.
        $$



        The values of $I_n$ can be found in the OEIS as sequence A001037:
        $$
        I_n = 2, 1, 2, 3, 6, 9, 18, 30, 56, 99, ldots
        $$







        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered Dec 17 '18 at 10:02









        KlangenKlangen

        1,73711334




        1,73711334






























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