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 A298260 #7 Jan 15 2018 21:07:02
%S A298260 1,-1,1,-3,8,-22,62,-182,550,-1694,5294,-16758,53635,-173260,564129,
%T A298260 -1849448,6099972,-20227036,67390803,-225485432,757361764,-2552692848,
%U A298260 8631144354,-29268108530,99511629658,-339167845294,1158607479710,-3966129297519,13603228472518
%N A298260 G.f. A(x) satisfies A(x) = Product_{k>=1} 1/(1 + x^k*A(x)).
%e A298260 G.f. A(x) = 1 - x + x^2 - 3*x^3 + 8*x^4 - 22*x^5 + 62*x^6 - 182*x^7 + 550*x^8 - 1694*x^9 + ...
%e A298260 G.f. A(x) satisfies A(x) = 1/((1 + x*A(x)) * (1 + x^2*A(x)) * (1 + x^3*A(x)) * ... ).
%Y A298260 Cf. A145267, A145268, A298261.
%K A298260 sign
%O A298260 0,4
%A A298260 _Ilya Gutkovskiy_, Jan 15 2018