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 A145374 #13 May 27 2025 10:35:12
%S A145374 1,6,26,111,331,1276,3576,14301,43401,142626,422526,1501051,4244551,
%T A145374 13621176,41578676,130893801,378009301,1188872926,3428610426,
%U A145374 10769968551,31120656051,92887286676,269920084176,830429397301,2353647784801
%N A145374 Row sums of triangle A145373 (S1hat(-5)) and partition array A145372 (M31hat(-5)).
%F A145374 a(n) = Sum_{m=1..n} A145373(n,m), n>=1.
%Y A145374 Cf. A145372, A145373, A145371 (row sums of triangle A145370 (S1hat(-4))).
%K A145374 nonn,more
%O A145374 0,2
%A A145374 _Wolfdieter Lang_, Oct 17 2008, Nov 13 2008