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 A035245 #7 Jul 30 2020 12:20:17 %S A035245 1,4,7,9,11,13,16,17,19,25,28,29,31,36,44,47,49,52,53,59,61,63,64,67, %T A035245 68,71,76,77,81,83,91,99,100,101,112,113,116,117,119,121,124,133,143, %U A035245 144,151,153,157,163,167,169,171,173,175,176,181,187,188,196,203 %N A035245 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= -13. %o A035245 (PARI) m=-13; select(x -> x, direuler(p=2,101,1/(1-(kronecker(m,p)*(X-X^2))-X)), 1) %Y A035245 Cf. A035177 (the expansion itself). %K A035245 nonn %O A035245 1,2 %A A035245 _N. J. A. Sloane_ %E A035245 Edited and extended by _Andrey Zabolotskiy_, Jul 30 2020