1,2
If n = Product p(i)^r(i), d = Product p(i)^s(i) and s(i) = 0 or s(i) divides r(i), then d is a (1+e)-divisor of n.
Table of n, a(n) for n=1..37.
Cf. A049599, A051378.
Sequence in context: A118809 A121048 A075389 * A036697 A131292 A276476
Adjacent sequences: A053781 A053782 A053783 * A053785 A053786 A053787
easy,nonn
Naohiro Nomoto, Apr 14 2001
approved