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 A346187 #5 Jul 10 2021 03:04:38
%S A346187 1,1,9,279,20655,2997405,753171615,300907367775,179603100388215,
%T A346187 152724638158940925,178223093773584811875,276909379421415142992975,
%U A346187 558708999223935430219474125,1433526175506213101913925750425,4594607165137022427482460137390625,18114938314838093950739712451059177375
%N A346187 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n,k)^3 * a(k) * a(n-k-1).
%t A346187 a[0] = 1; a[n_] := a[n] = Sum[Binomial[n, k]^3 a[k] a[n - k - 1], {k, 0, n - 1}]; Table[a[n], {n, 0, 15}]
%Y A346187 Cf. A001059, A001147, A181543, A336195, A346186.
%K A346187 nonn
%O A346187 0,3
%A A346187 _Ilya Gutkovskiy_, Jul 09 2021