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 A304988 #5 May 31 2018 02:47:30
%S A304988 1,0,3,4,16,20,67,84,231,324,735,1026,2265,3086,6199,8880,16564,23390,
%T A304988 42378,59496,103588,146376,244278,344186,564013,788168,1255201,
%U A304988 1758400,2738833,3812242,5846114,8092092,12200957,16848156,24991705,34365176,50392543
%N A304988 G.f.: Sum_{k>=0} A000041(k)^2 * x^k / Sum_{k>=0} A000009(k) * x^k.
%F A304988 a(n) ~ 7^(3/2) * exp(Pi*sqrt(7*n/3)) / (768*n^2).
%t A304988 nmax = 50; CoefficientList[Series[Sum[PartitionsP[k]^2*x^k, {k, 0, nmax}] / Sum[PartitionsQ[k]*x^k, {k, 0, nmax}], {x, 0, nmax}], x]
%Y A304988 Cf. A000009, A000041, A001255, A054440, A304877, A305350.
%K A304988 nonn
%O A304988 0,3
%A A304988 _Vaclav Kotesovec_, May 23 2018