OFFSET
1,2
LINKS
MAPLE
A105826:= n-> (numtheory[sigma](n) mod 7):
seq (A105826(n), n=1..105); # Jani Melik, Jan 26 2011
MATHEMATICA
Mod[DivisorSigma[1, Range[110]], 7] (* Harvey P. Dale, Jul 30 2021 *)
PROG
(PARI) a(n)=sigma(n)%7
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Shyam Sunder Gupta, May 05 2005
STATUS
approved