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 A305814 #8 Jun 12 2018 10:16:10
%S A305814 1,2,2,6,3,20,2,42,10,66,2,660,2,20,42,546,13,1700,2,3762,12,20,5,
%T A305814 106260,6,20,110,660,5,106260,2,15834,20,806,30,2075700,2,20,44,
%U A305814 1079694,2,6600,5,660,4830,170,2,42822780,10,660,754,660,5,691900,12,106260,44,170,2,2731625820,2,20,660,680862,114,17000,2,113646,30,56100,5
%N A305814 a(n) = Product_{d|n, d>1} prime(A305788(d)-1).
%H A305814 Antti Karttunen, <a href="/A305814/b305814.txt">Table of n, a(n) for n = 1..8192</a>
%H A305814 <a href="/index/Ge#GF2X">Index entries for sequences operating on GF(2)[X]-polynomials</a>
%F A305814 a(n) = Product_{d|n} A008578(A305788(d)).
%o A305814 (PARI) A305814(n) = { my(m=1); fordiv(n, d, if(d>1, m *= prime(A305788(d)-1))); (m); }; \\ Needs also code from A305788.
%Y A305814 Cf. A008578, A278233, A305788, A305812, A305815 (rgs-transform).
%K A305814 nonn
%O A305814 1,2
%A A305814 _Antti Karttunen_, Jun 11 2018