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 A342197 #5 Mar 04 2021 20:55:51
%S A342197 1,1,9,63,919,18919,505639,18602319,877402487,51212704151,
%T A342197 3688010412503,321523601578079,33283248550719793,4050897039400696253,
%U A342197 574469890816237292037,93943844587040615104177,17565329004174205621822169,3730161837629377369026433019
%N A342197 a(0) = 1; a(n) = Sum_{k=1..n} binomial(n,k)^3 * a(k-1).
%t A342197 a[0] = 1; a[n_] := a[n] = Sum[Binomial[n, k]^3 a[k - 1], {k, 1, n}]; Table[a[n], {n, 0, 17}]
%Y A342197 Cf. A040027, A061684, A336195, A342196, A342198, A342199.
%K A342197 nonn
%O A342197 0,3
%A A342197 _Ilya Gutkovskiy_, Mar 04 2021