OFFSET
1,1
COMMENTS
LINKS
Robert Israel, Table of n, a(n) for n = 1..3314
Eric Weisstein's World of Mathematics, Divisor Function
MAPLE
ListTools:-PartialSums([seq(2^k*numtheory:-tau(k), k=1..100)]); # Robert Israel, Jun 27 2019
MATHEMATICA
Accumulate[Table[2^k*DivisorSigma[0, k], {k, 1, 30}]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Mar 18 2019
STATUS
approved