OFFSET
1,8
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..65537
PROG
(PARI) A318502(n) = { my(v=0); fordiv(n, d, if(-1==moebius(n/d), v=bitxor(v, sigma(d)-d))); (v); };
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Aug 28 2018
STATUS
approved