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 A294038 #3 Nov 05 2017 19:52:07
%S A294038 1,1,4,27,64,3125,108,823543,65536,14348907,12500,285311670611,746496,
%T A294038 302875106592253,3294172,7119140625,1099511627776,
%U A294038 827240261886336764177,1549681956,1978419655660313589123979,40000000000,13349464742886867,1141246682444
%N A294038 a(n) = Product_{k=0..n-1} n/gcd(n, A056040(k)).
%p A294038 seq(mul(n/igcd(n, A056040(k)), k=0..n-1), n=0..22);
%Y A294038 Cf. A056040, A051674, A058067.
%K A294038 nonn
%O A294038 0,3
%A A294038 _Peter Luschny_, Nov 05 2017