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A095999 Number of divisors of n that are < log(n). 1
0, 0, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 2, 3, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 2, 3, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 2, 3, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 2, 3, 1, 3, 1, 3, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

MATHEMATICA

f[n_] := Length[ Select[ Divisors[ n], # < Log[ n] &]]; Table[ f[n], {n, 105}]

PROG

(PARI) a(n) = sumdiv(n, d, d<log(n)); \\ Michel Marcus, Jun 29 2015

(PARI) A095999(n) = sumdiv(n, d, exp(d)<n); \\ Antti Karttunen, May 19 2020

CROSSREFS

Sequence in context: A160984 A346094 A082898 * A334948 A161238 A161062

Adjacent sequences:  A095996 A095997 A095998 * A096000 A096001 A096002

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Jul 19 2004, based on a suggestion from Leroy Quet, Jun 18 2004

STATUS

approved

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Last modified October 27 04:30 EDT 2021. Contains 348270 sequences. (Running on oeis4.)