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 A132061 #4 Dec 02 2021 17:08:57 %S A132061 1,7,97,2015,55841,1935719,80574433,3915183103,217530794305, %T A132061 13603055116679,945542295992801,72321915976403807,6036466379411066977, %U A132061 545983089637963491175,53194885608199879974241 %N A132061 Alternating row sums of triangle A132056 (S2(8), Stirling2 generalization). %F A132061 a(n)= -sum(A132056(n, m)*(-1)^m, m=1..n), n>=1. %F A132061 E.g.f.:-(exp(1 - (1-7*x)^(-1/7)) - 1). %Y A132061 Cf. A092085 (alternating row sums of S2(7)=A092082). %K A132061 nonn,easy %O A132061 0,2 %A A132061 _Wolfdieter Lang_ Sep 14 2007