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 A035255 #7 Jul 30 2020 12:19:00 %S A035255 1,4,5,7,9,11,16,19,20,25,28,35,36,37,43,44,45,49,53,55,63,64,76,77, %T A035255 79,80,81,83,89,95,97,99,100,107,112,113,121,125,127,131,133,137,139, %U A035255 140,144,148,151,157,167,169,171,172,175,176,180,181,185,196,209 %N A035255 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= 11. %o A035255 (PARI) m=11; select(x -> x, direuler(p=2,101,1/(1-(kronecker(m,p)*(X-X^2))-X)), 1) %Y A035255 Cf. A035193 (the expansion itself). %K A035255 nonn %O A035255 1,2 %A A035255 _N. J. A. Sloane_ %E A035255 Edited and extended by _Andrey Zabolotskiy_, Jul 30 2020