cp's OEIS Frontend

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.

A374656 a(n) = Product_{k=0..n} L(k)+2, where L=A000032 (Lucas numbers).

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%I A374656 #4 Jul 31 2024 11:28:16
%S A374656 4,12,60,360,3240,42120,842400,26114400,1279605600,99809236800,
%T A374656 12476154600000,2507707074600000,812497092170400000,
%U A374656 424935979205119200000,359070902428325724000000,490490852717092938984000000,1083494293652058302215656000000
%N A374656 a(n) = Product_{k=0..n} L(k)+2, where L=A000032 (Lucas numbers).
%C A374656 a(n+1)/a(n) is an integer for n>=0, so (a(n)) is a divisibility sequence.
%t A374656 w[n_] := Product[LucasL[k] + 2, {k, 0, n}]
%t A374656 Table[w[n], {n, 0, 20}]
%Y A374656 Cf. A000032, A374654, A374657.
%K A374656 nonn
%O A374656 0,1
%A A374656 _Clark Kimberling_, Jul 28 2024