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 A364075 #4 Jul 06 2023 21:14:33
%S A364075 1,3,15,190,6410,715632,329228397,642643955573,5397009875581209,
%T A364075 229445611563324949690,42191138284027801530473000,
%U A364075 46655044099184540456537140765334,234194471368188917606391033927435435145,7541601159871173209667556247111598350602865715,1286007207921675504103355843697108982290866195893407427
%N A364075 Antidiagonal sums of A364074.
%t A364075 A[m_,n_]:=Sum[Sum[Binomial[n,d]StirlingS2[n-d,i](m^(m-1)-1)^(n-d-i),{d,0,n-i}],{i,0,n}]; a[n_]=Sum[A[n-m+1,m],{m,0,n-2}]; Array[a,15,2]
%Y A364075 Cf. A364074.
%K A364075 nonn
%O A364075 2,2
%A A364075 _Stefano Spezia_, Jul 04 2023