A277705 - OEIS

A277705

Number of divisors in A260443(n).

1, 2, 2, 4, 2, 6, 4, 8, 2, 12, 6, 16, 4, 18, 8, 16, 2, 24, 12, 32, 6, 40, 16, 48, 4, 48, 18, 64, 8, 54, 16, 32, 2, 48, 24, 96, 12, 120, 32, 120, 6, 150, 40, 168, 16, 180, 48, 144, 4, 144, 48, 192, 18, 240, 64, 240, 8, 192, 54, 256, 16, 162, 32, 64, 2, 96, 48, 288, 24, 480, 96, 400, 12, 560, 120, 540, 32, 480, 120, 480, 6

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OFFSET

0,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..8192

FORMULA

a(n) = A000005(A260443(n)).

a(n) = A106737(A277020(n)).

PROG

(Scheme)

(define (A277705 n) (fold-left (lambda (a e) (* (+ 1 e) a)) 1 (A260443as_coeff_list n))) ;; A260443as_coeff_list given in A260443.

CROSSREFS