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 A374876 #5 Sep 14 2024 15:50:01
%S A374876 3,6,32,480,36400,15811200,48402042480,1206043046666640,
%T A374876 276580685164781030400,652981562430940302718878720,
%U A374876 17542316699101442389453162362832320,5863769800904933880463358889014242882022400,26512736336116399269871416473897490370043694674400000
%N A374876 Obverse convolution (n!)**A000032; see Comments.
%C A374876 See A374848 for the definition of obverse convolution and a guide to related sequences.
%t A374876 s[n_] := n!; t[n_] := LucasL[n];
%t A374876 u[n_] := Product[s[k] + t[n - k], {k, 0, n}]
%t A374876 Table[u[n], {n, 0, 13}]
%Y A374876 Cf. A000032, A000142, A374848.
%K A374876 nonn
%O A374876 0,1
%A A374876 _Clark Kimberling_, Sep 13 2024