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 A134276 #6 Sep 25 2024 14:58:21
%S A134276 1,6,51,661,10831,224751,5523051,158795026,5197210126,191295597726,
%T A134276 7808335521876,350242714836901,17115798145640401,905207663613680151,
%U A134276 51504322711247118276,3137060525840824654651,203646443505582301226401
%N A134276 Row sums of triangle A134275 (S2(5)').
%F A134276 a(n) = Sum_{m=1..n} A134275(n,m), n>=1.
%F A134276 a(n) = Sum_{k=1..p(n)} A134274(n,k), with p(n) = A000041(n) (number of partitions of n).
%Y A134276 Cf. A000041, A134277 (alternating row sums of triangle A134275).
%K A134276 nonn,easy
%O A134276 1,2
%A A134276 _Wolfdieter Lang_, Nov 13 2007