OFFSET
1,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..4
MATHEMATICA
Table[DivisorSigma[n^n, n], {n, 1, 5}]
PROG
(PARI) a(n) = sigma(n, n^n); \\ Amiram Eldar, Mar 01 2024
CROSSREFS
KEYWORD
bref,nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Feb 26 2009
STATUS
approved