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 A297324 #9 Aug 18 2023 08:26:14 %S A297324 1,-1,-3,8,9,-26,-168,489,1041,-5599,12,27103,23436,-222912,-435473, %T A297324 3177433,375569,-24956018,6931209,181844002,57372644,-2158209675, %U A297324 853739235,20642183588,-25063980804,-148768035501,224915906836,1322267927471,-2337343745721,-12604818831294 %N A297324 a(n) = [x^n] Product_{k>=1} (1 - k*x^k)^n. %H A297324 Seiichi Manyama, <a href="/A297324/b297324.txt">Table of n, a(n) for n = 0..1000</a> %F A297324 a(n) = A297323(n,n). %t A297324 Table[SeriesCoefficient[Product[(1 - k x^k)^n, {k, 1, n}], {x, 0, n}], {n, 0, 29}] %Y A297324 Main diagonal of A297323. %Y A297324 Cf. A297322, A297326, A297329. %K A297324 sign %O A297324 0,3 %A A297324 _Ilya Gutkovskiy_, Dec 28 2017