OFFSET
1,2
LINKS
FORMULA
From Amiram Eldar, Apr 16 2024: (Start)
MATHEMATICA
Mod[DivisorSigma[0, Range[110]], 3] (* Harvey P. Dale, Dec 22 2013 *)
PROG
(PARI) a(n)=numdiv(n)%3
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Oct 04 2002
STATUS
approved