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 A111375 #5 Dec 29 2023 13:23:10 %S A111375 1,-1,-1,2,-2,1,3,-5,0,3,-1,0,3,-2,-8,9,1,-7,10,-6,-5,3,3,3,-6,9,-9, %T A111375 -8,10,2,8,-13,6,-7,-17,34,-1,-10,-5,2,-8,-11,50,-20,-21,16,-16,-5,5, %U A111375 56,-37,-31,35,-40,12,29,40,-56,-40,62,-58,29,52,11,-73,-41,99,-98,56,98,-66,-73,-24,114,-120,100,125,-179,-33,-10,117,-111 %N A111375 Let qf(a,q) = Product(1-a*q^j,j=0..infinity); g.f. is qf(q,q^7)*qf(q^2,q^7)*qf(q^4,q^7)/(qf(q^3,q^7)*qf(q^5,q^7)*qf(q^6,q^7)). %C A111375 Suggested by A003823. %p A111375 M:=100; qf:=(a,q)->mul(1-a*q^j,j=0..M); t7:=qf(q,q^7)*qf(q^2,q^7)*qf(q^4,q^7)/(qf(q^3,q^7)*qf(q^5,q^7)*qf(q^6,q^7)); series(%,q,M); seriestolist(%); %Y A111375 Cf. A003823, A111374, A111376. %K A111375 sign %O A111375 0,4 %A A111375 _N. J. A. Sloane_, Nov 09 2005