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 A362989 #4 May 14 2023 09:39:14
%S A362989 1,1,1,6,2,30,10,420,84,1260,420,13860,132,180180,60060,360360,24024,
%T A362989 6126120,291720,116396280,705432,116396280,38798760,2677114440,
%U A362989 9806280,13385572200,13385572200,40156716600,2677114440,1164544781400,5041319400,72201776446800
%N A362989 a(n) = lcm({i + 1, i = 0..n}) / Product_{d | n, d + 1 prime} d.
%p A362989 LCM := n -> ilcm(seq(i + 1, i = 0..n)):
%p A362989 Clausen := n -> if n = 0 then 1 else
%p A362989 mul(i, i = select(isprime, map(i -> i+1, NumberTheory:-Divisors(n)))) fi:
%p A362989 A362989 := n -> LCM(n) / Clausen(n): seq(A362989(n), n = 0..31);
%Y A362989 Cf. A003418 (lcm), A160014 (Clausen).
%K A362989 nonn
%O A362989 0,4
%A A362989 _Peter Luschny_, May 14 2023