The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #11 Sep 08 2022 08:45:32
%S 1,5,161,6989,889769,145034861,42816875729,15196271678069,
%T 8132911703794601,6790008314246422541,6567054920481119894801,
%U 8950073675937467308565669,15100141203716305943432625689
%N Numerator of Sum_{k=1..n} (-1)^(k+1)/prime(k)^2.
%t Table[Numerator[Sum[(-1)^(k+1)/Prime[k]^2, {k, 1, n}]], {n, 1, 20}]
%o (Magma) [Numerator(&+[(-1)^(k+1)/NthPrime(k)^2:k in [1..n]]): n in [1..13]]; // _Marius A. Burtea_, Aug 26 2019
%Y Cf. A136369, A136365, A136366, A024530, A136370, A136371.
%K nonn,frac
%O 1,2
%A _Alexander Adamchuk_, Dec 27 2007