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 A374858 #4 Aug 28 2024 10:56:15
%S A374858 2,3,24,240,4200,110880,4572288,288812160,28141344000,4231979136000,
%T A374858 986721354178560,357978242151129600,202881784891968000000,
%U A374858 180248848162914585600000,251851399750851061045248000,554999919804958202694991872000,1933790758313726593648946202624000
%N A374858 Obverse convolution (n)**(Lucas(n)); see Comments.
%C A374858 See A374848 for the definition of obverse convolution and a guide to related sequences.
%t A374858 s[n_] := n; t[n_] := LucasL[n];
%t A374858 u[n_] := Product[s[k] + t[n - k], {k, 0, n}]
%t A374858 Table[u[n], {n, 0, 20}]
%Y A374858 Cf. A000027, A000032, A374848.
%K A374858 nonn
%O A374858 0,1
%A A374858 _Clark Kimberling_, Aug 18 2024