This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A035249 #7 Jul 30 2020 12:20:24 %S A035249 1,3,4,5,7,9,12,15,16,20,21,23,25,27,28,29,35,36,41,43,45,47,48,49,60, %T A035249 61,63,64,67,69,75,80,81,83,84,87,89,92,100,101,103,105,107,108,109, %U A035249 112,115,116,121,123,125,127,129,135,140,141,144,145,147,149,161 %N A035249 Indices of the nonzero terms in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m= -5. %o A035249 (PARI) m=-5; select(x -> x, direuler(p=2,101,1/(1-(kronecker(m,p)*(X-X^2))-X)), 1) %Y A035249 Cf. A035183 (the expansion itself). %K A035249 nonn %O A035249 1,2 %A A035249 _N. J. A. Sloane_ %E A035249 Edited and extended by _Andrey Zabolotskiy_, Jul 30 2020