OFFSET
1,6
LINKS
PROG
(PARI) A318463(n) = { my(ands=0); fordiv(n, d, if(d<(n/d), ands += bitand(d, n/d))); (ands); };
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Antti Karttunen, Aug 28 2018
STATUS
approved