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 A319342 #5 Sep 17 2018 15:45:26
%S A319342 1,2,2,4,2,12,2,12,6,20,2,108,2,28,30,60,2,252,2,300,42,28,2,2700,10,
%T A319342 44,42,588,2,11700,2,780,42,68,70,26460,2,44,66,19500,2,19404,2,588,
%U A319342 2730,28,2,456300,14,1100,102,1452,2,19404,70,32340,66,44,2,29659500,2,76,3234,13260,110,19404,2,3468,42,112700,2,18918900,2,116
%N A319342 a(n) = Product_{d|n, d<n} prime(A318881(d)), where A318881(d) records the prime signature of A000010(d).
%H A319342 Antti Karttunen, <a href="/A319342/b319342.txt">Table of n, a(n) for n = 1..8192</a>
%F A319342 a(n) = Product_{d|n, d<n} prime(A318881(d)).
%o A319342 (PARI) A319342(n) = { my(m=1); fordiv(n, d, if((d<n), m *= prime(A318881(d)))); (m); }; \\ Needs also code from A318881
%Y A319342 Cf. A318881, A319343 (rgs-transform), A319344.
%Y A319342 Cf. also A305982.
%K A319342 nonn
%O A319342 1,2
%A A319342 _Antti Karttunen_, Sep 17 2018