OFFSET
0,1
LINKS
T. D. Noe, Table of n, a(n) for n=0..200
MATHEMATICA
Total[#^Range[0, 20]&/@Divisors[72]] (* Vincenzo Librandi, Apr 17 2014 *)
PROG
(Magma) [DivisorSigma(n, 72): n in [0..15]]; // Vincenzo Librandi, Apr 17 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved