OFFSET
1,2
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..8192
FORMULA
a(n) = Product_{d|n, d>1} prime(1+(d mod 12)).
PROG
(PARI) A320112(n) = { my(m=1); fordiv(n, d, if(d>1, m *= prime(1+(d%12)))); (m); };
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Oct 06 2018
STATUS
approved