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 A332753 #8 Feb 22 2020 09:46:38
%S A332753 1,1,1,1,2,2,4,4,7,8,12,12,22,22,32,38,56,56,90,90,132,150,204,204,
%T A332753 326,327,437,489,677,677,994,994,1361,1499,1943,1958,2889,2889,3733,
%U A332753 4078,5445,5445,7549,7549,9969,10853,13733,13733,19329,19330,24577,26404,34080
%N A332753 G.f. A(x) satisfies: A(x) = x * (1 + A(x) + A(x^2)^2 + A(x^3)^3 + ...).
%C A332753 If n is prime or 1 then a(n) = a(n+1).
%t A332753 terms = 53; A[_] = 0; Do[A[x_] = x (1 + Sum[A[x^k]^k, {k, 1, terms}]) + O[x]^(terms + 1) // Normal, terms + 1]; CoefficientList[A[x], x] // Rest
%Y A332753 Cf. A000108, A003238, A008578, A038046.
%K A332753 nonn
%O A332753 1,5
%A A332753 _Ilya Gutkovskiy_, Feb 22 2020