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 A027487 #13 Nov 06 2019 17:48:51 %S A027487 1,12,215,5700,212464,10645152,691560092,56600396640,5701663652256, %T A027487 693513787887360,100238236943757120,16984716659427928320, %U A027487 3334997046159250716672,751255152802084700098560,192454224298697834146195200,55636762557552859712661811200 %N A027487 Second column of triangle A027477, constructed from the Stirling numbers of the first kind. %F A027487 a(n) = A027477(n,2). %Y A027487 Cf. A027477 (Square of normalized Stirling matrix of the first kind). %K A027487 nonn,easy %O A027487 2,2 %A A027487 _Olivier Gérard_ %E A027487 More terms from _Sean A. Irvine_, Nov 06 2019