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 A374660 #4 Jul 31 2024 11:28:52 %S A374660 6,30,210,1680,18480,277200,6098400,201247200,10263607200, %T A374660 821088576000,104278249152000,21168484577856000,6900925972381056000, %U A374660 3622986135500054400000,3068669256768546076800000,4197939543259371033062400000,9281644330146469354100966400000 %N A374660 a(n) = Product_{k=0..n+1} L(k)+4, where L=A000032 (Lucas numbers). %C A374660 a(n+1)/a(n) is an integer for n>=0, so (a(n)) is a divisibility sequence. %t A374660 w[n_] := Product[LucasL[k] + 4, {k, 0, n}] %t A374660 Table[w[n], {n, 0, 20}] %Y A374660 Cf. A000032, A374654, A374661. %K A374660 nonn %O A374660 0,1 %A A374660 _Clark Kimberling_, Jul 28 2024