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 A126574 #10 Oct 10 2019 13:47:31
%S A126574 1,6,60,980,17010,691152,14385280,553311000,20549850750,1183631840160,
%T A126574 40862208651264,3546593581385400,146387176845000000,
%U A126574 11600430026834880000,876804182167691796480,71417792752792726589856
%N A126574 a(n) = product of terms in n-th row of triangle A126571.
%t A126574 f[m_, n_] := Block[{k = 0, c = n},While[c > 0,k++;While[GCD[k, m] > 1, k++ ];c--;];k];Table[Product[f[m, n], {m, n}], {n, 17}] (* _Ray Chandler_, Dec 29 2006 *)
%Y A126574 Cf. A126571, A126573.
%K A126574 nonn
%O A126574 1,2
%A A126574 _Leroy Quet_, Dec 28 2006
%E A126574 Extended by _Ray Chandler_, Dec 29 2006