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 A320108 #7 Oct 08 2018 08:07:07 %S A320108 1,5,7,55,13,595,19,110,21,325,7,71995,13,1615,1729,220,3,8925,7, %T A320108 39325,1729,595,19,287980,39,325,147,195415,13,12492025,19,440,147,75, %U A320108 1729,11879175,13,595,1729,157300,3,12492025,7,71995,67431,1615,19,1151920,57,4875,147,39325,13,1062075,1729,781660,147,325,7,182895738025,13,1615,98553,880,507 %N A320108 a(n) = Product_{d|n, d>1} prime(1+(d mod 8)). %H A320108 Antti Karttunen, <a href="/A320108/b320108.txt">Table of n, a(n) for n = 1..8192</a> %F A320108 a(n) = Product_{d|n, d>1} prime(1+(d mod 8)). %o A320108 (PARI) A320108(n) = { my(m=1); fordiv(n,d,if(d>1, m *= prime(1+(d%8)))); (m); }; %Y A320108 Cf. A080682, A319987, A320112, A320114, A320116. %Y A320108 Cf. A320109 (rgs-transform). %K A320108 nonn %O A320108 1,2 %A A320108 _Antti Karttunen_, Oct 06 2018