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 A035252 #7 Jul 30 2020 12:20:28 %S A035252 1,3,4,9,11,12,13,16,23,25,27,33,36,37,39,44,47,48,49,52,59,61,64,69, %T A035252 71,73,75,81,83,92,97,99,100,107,108,109,111,117,121,131,132,141,143, %U A035252 144,147,148,156,157,167,169,176,177,179,181,183,188,191,192,193 %N A035252 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= 3. %o A035252 (PARI) m=3; select(x -> x, direuler(p=2,101,1/(1-(kronecker(m,p)*(X-X^2))-X)), 1) %Y A035252 Cf. A035186 (the expansion itself). %K A035252 nonn %O A035252 1,2 %A A035252 _N. J. A. Sloane_ %E A035252 Edited and extended by _Andrey Zabolotskiy_, Jul 30 2020