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 A344402 #7 Dec 10 2023 17:19:36
%S A344402 1,9,81,2187,19683,177147,4782969,43046721,387420489,31381059609,
%T A344402 282429536481,2541865828329,68630377364883,617673396283947,
%U A344402 5559060566555523,150094635296999121,1350851717672992089,12157665459056928801,984770902183611232881,8862938119652501095929
%N A344402 a(n) = denominator(R(n,3)), where R(n,d) = (Product_{j prime to d} Pochhammer(j/d, n)) / n!.
%p A344402 coprimes := n -> select(j -> igcd(j, n) = 1, {$1..n}):
%p A344402 R := (n, d) -> mul(pochhammer(j/d, n), j in coprimes(d)) / n!:
%p A344402 seq(denom(R(n, 3)), n = 0..16);
%Y A344402 R(n, 1) = A000012 / A000012.
%Y A344402 R(n, 2) = A001790 / A046161.
%Y A344402 R(n, 3) = A273194 / (this sequence).
%K A344402 nonn
%O A344402 0,2
%A A344402 _Peter Luschny_, May 20 2021