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 A357933 #9 Oct 21 2022 10:12:12
%S A357933 1,1,1,1,1,1,2,4,7,11,16,24,40,72,131,231,395,675,1187,2161,4006,7414,
%T A357933 13609,24951,46210,86930,165528,316682,606047,1161343,2237329,4345777,
%U A357933 8507103,16738587,33030166,65352308,129821251,259254283,520531422,1049771054,2124315222
%N A357933 a(n) = Sum_{k=0..floor(n/5)} |Stirling1(n - 4*k,n - 5*k)|.
%F A357933 G.f.: Sum_{k>=0} x^k * Product_{j=0..k-1} (1 + j * x^4).
%o A357933 (PARI) a(n) = sum(k=0, n\5, abs(stirling(n-4*k, n-5*k, 1)));
%o A357933 (PARI) my(N=50, x='x+O('x^N)); Vec(sum(k=0, N, x^k*prod(j=0, k-1, 1+j*x^4)))
%Y A357933 Cf. A124380, A357931, A357932.
%K A357933 nonn
%O A357933 0,7
%A A357933 _Seiichi Manyama_, Oct 21 2022