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%I A085966 #42 Feb 23 2024 07:27:56
%S A085966 0,1,7,0,7,0,0,8,6,8,5,0,6,3,6,5,1,2,9,5,4,1,3,3,6,7,3,2,6,6,0,5,9,3,
%T A085966 9,9,2,0,9,5,8,5,9,4,1,8,7,4,5,4,4,2,4,4,7,3,3,1,6,3,3,6,8,8,3,6,9,6,
%U A085966 9,7,3,6,7,4,7,1,7,2,4,3,6,6,7,1,8,6,0,3,5,0,0,7,8,1,8,0,6,2,3,0,2,8,8,2,3
%N A085966 Decimal expansion of the prime zeta function at 6.
%C A085966 Mathar's Table 1 (cited below) lists expansions of the prime zeta function at integers s in 10..39. - _Jason Kimberley_, Jan 07 2017
%D A085966 Henri Cohen, Number Theory, Volume II: Analytic and Modern Tools, GTM Vol. 240, Springer, 2007; see pp. 208-209.
%D A085966 J. W. L. Glaisher, On the Sums of Inverse Powers of the Prime Numbers, Quart. J. Math. 25, 347-362, 1891.
%H A085966 Jason Kimberley, <a href="/A085966/b085966.txt">Table of n, a(n) for n = 0..1802</a>
%H A085966 Henri Cohen, <a href="http://www.math.u-bordeaux.fr/~cohen/hardylw.dvi">High Precision Computation of Hardy-Littlewood Constants</a>, Preprint, 1998.
%H A085966 Henri Cohen, <a href="/A221712/a221712.pdf">High-precision computation of Hardy-Littlewood constants</a>. [pdf copy, with permission]
%H A085966 X. Gourdon and P. Sebah, <a href="http://numbers.computation.free.fr/Constants/Miscellaneous/constantsNumTheory.html">Some Constants from Number theory</a>
%H A085966 R. J. Mathar, <a href="http://arxiv.org/abs/0803.0900">Series of reciprocal powers of k-almost primes</a>, arXiv:0803.0900 [math.NT], 2008-2009. Table 1.
%H A085966 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PrimeZetaFunction.html">Prime Zeta Function</a>
%F A085966 P(6) = Sum_{p prime} 1/p^6 = Sum_{n>=1} mobius(n)*log(zeta(6*n))/n
%F A085966 Equals 1/2^6 + A085995 + A086036. - _R. J. Mathar_, Jul 14 2012
%F A085966 Equals Sum_{k>=1} 1/A030516(k). - _Amiram Eldar_, Jul 27 2020
%e A085966 0.0170700868506365129541...
%t A085966 s[n_] := s[n] = Sum[ MoebiusMu[k]*Log[Zeta[6*k]]/k, {k, 1, n}] // RealDigits[#, 10, 104]& // First // Prepend[#, 0]&; s[100]; s[n = 200]; While[s[n] != s[n - 100], n = n + 100]; s[n] (* _Jean-François Alcover_, Feb 14 2013 *)
%t A085966 RealDigits[ PrimeZetaP[ 6], 10, 111][[1]] (* _Robert G. Wilson v_, Sep 03 2014 *)
%o A085966 (Magma) R := RealField(106);
%o A085966 PrimeZeta := func<k,N | &+[R|MoebiusMu(n)/n*Log(ZetaFunction(R,k*n)): n in[1..N]]>;
%o A085966 [0]cat Reverse(IntegerToSequence(Floor(PrimeZeta(6,57)*10^105)));
%o A085966 // _Jason Kimberley_, Dec 30 2016
%o A085966 (PARI) sumeulerrat(1/p,6) \\ _Hugo Pfoertner_, Feb 03 2020
%Y A085966 Decimal expansion of the prime zeta function: A085548 (at 2), A085541 (at 3), A085964 (at 4), A085965 (at 5), this sequence (at 6), A085967 (at 7) to A085969 (at 9).
%Y A085966 Cf. A013664, A030516.
%K A085966 cons,easy,nonn
%O A085966 0,3
%A A085966 Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Jul 06 2003

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