OFFSET
2,1
LINKS
Antti Karttunen, Table of n, a(n) for n = 2..16385
PROG
(PARI) A141377(n) = { my(d=numdiv(n)); for(k=2, oo, if(gcd(k, n)>1 && gcd(k, d)>1, return(k))); }; \\ Antti Karttunen, Feb 18 2023
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Jun 28 2008
EXTENSIONS
Extended by Ray Chandler, Jun 24 2009
STATUS
approved