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 A359665 #9 Jan 10 2023 08:32:34 %S A359665 1,2,30,2955,638331,235169606,131748994154,104332124742623, %T A359665 110963563379491743,152605484049946645638,263562165946020159478038, %U A359665 558488792578762177358255808,1424733420462958066911824023728,4307309064570490624823548890385698,15228800547242034570505949850130312826 %N A359665 a(n) = Sum_{k=0..n} binomial(k^3, k). %F A359665 a(n) ~ exp(n) * n^(2*n - 1/2) / sqrt(2*Pi). %t A359665 Table[Sum[Binomial[k^3, k], {k, 0, n}], {n, 0, 20}] %o A359665 (PARI) a(n) = sum(k=0, n, binomial(k^3, k)); \\ _Michel Marcus_, Jan 10 2023 %Y A359665 Cf. A005809, A107444, A188675, A295773. %K A359665 nonn %O A359665 0,2 %A A359665 _Vaclav Kotesovec_, Jan 10 2023