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 A145371 #13 Jul 03 2023 08:02:07
%S A145371 1,5,17,57,129,433,1009,3089,7697,20049,48849,139729,317137,818897,
%T A145371 2040017,5125329,12000465,30811345,71582929,179008721,427693265,
%U A145371 1024611537,2413499601,6027416785,13788615889
%N A145371 Row sums of triangle A145370 (S1hat(-4)) and partition array A145359 (M31hat(-4)).
%F A145371 a(n) = Sum_{m=1..n} A145370(n,m), n>=1.
%Y A145371 Cf. A145359, A145370, A145368 (row sums of triangle A145367).
%K A145371 nonn,more
%O A145371 1,2
%A A145371 _Wolfdieter Lang_, Oct 17 2008