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%I #26 Aug 25 2021 15:46:54
%S 0,9,4,6,1,9,8,9,2,8,9,2,9,5,0,1,5,7,9,4,5,1,8,6,7,9,0,1,4,9,1,7,4,8,
%T 0,9,6,0,1,8,8,0,3,4,0,2,4,9,7,2,1,3,5,7,1,4,8,5,9,6,0,8,5,7,5,9,4,3,
%U 1,3,7,3,2,7,5,6,2,5,5,8,4,1,6,3,9,0,4,4,2,9,3,4,6,4,3,8,0,7,9,9,6,4,2,0,8,7
%N Decimal expansion of Sum_{k>=2} (p mod 4 - 2)/p^2 where p=prime(k).
%D S. R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, pp. 94-98
%H R. J. Mathar, <a href="http://arxiv.org/abs/1008.2547">Table of Dirichlet L-series and Prime Zeta Modulo functions for small moduli</a>, arXiv:1008.2547 [math.NT], 2010-2015, variable S(m=4,s=2,r=2).
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PrimeSums.html">Prime Sums</a>
%F Equals A085991 - A086032. - _Vaclav Kotesovec_, Jun 19 2020
%e 0.094619892892950157945186790149174809601880340249721357148596...
%K nonn,cons,hard
%O 0,2
%A _Eric W. Weisstein_, Jul 13 2003
%E A missing digit inserted and more digits added by _R. J. Mathar_, Jul 28 2010
%E More digits from _Vaclav Kotesovec_, Jun 19 2020
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