A349837 - OEIS

A349837

a(n) is the number of integers m > 1 such that sigma(m) = tau(m)^n, with a(1) = 1.

1, 1, 1, 2, 3, 3, 3, 5, 4, 5, 5, 7, 9, 5, 6, 2, 7, 7, 5, 6, 5, 9, 6, 11, 6, 12, 10, 12, 14, 11, 13, 21, 16, 20, 19, 20, 19, 21, 21, 19, 17, 21, 18, 22, 19, 22, 20, 17, 17, 15, 23, 14, 17, 12, 16, 9, 11, 12, 10, 9, 9, 7, 10, 3, 8, 7, 6, 3, 7, 4, 4, 4, 3, 3, 2

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

COMMENTS

a(n) is the number of integers m such that A334455(m) = n.

Conjecture: a(n) > 0 except for n = 76 and n = 81.

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..5000

Rémy Sigrist, PARI program for A349837

PROG

(PARI) See Links section.

CROSSREFS