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A079680 Number of 1's in n!. 13
1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 2, 1, 0, 0, 0, 3, 1, 3, 2, 1, 1, 4, 3, 3, 4, 4, 3, 2, 5, 7, 2, 4, 4, 4, 7, 3, 6, 6, 6, 4, 6, 7, 4, 10, 4, 5, 7, 10, 3, 2, 5, 5, 4, 7, 10, 6, 8, 3, 8, 9, 12, 5, 5, 8, 11, 9, 7, 6, 6, 16, 13, 9, 7, 7, 11, 15, 8, 9, 13, 10, 15, 13, 8, 14, 14, 12, 11, 12, 13, 16, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,15

LINKS

Table of n, a(n) for n=0..94.

Index entries for sequences related to factorial numbers.

FORMULA

a(n) = A034886(n) - (A027869(n) + A079714(n) + A079684(n) + A079688(n) + A079690(n) + A079691(n) + A079692(n) + A079693(n) + A079694(n)). - Reinhard Zumkeller, Jan 27 2008

CROSSREFS

Cf. A000142, A137579, A137580.

Sequence in context: A128206 A103294 A198379 * A037855 A037873 A036869

Adjacent sequences:  A079677 A079678 A079679 * A079681 A079682 A079683

KEYWORD

easy,nonn,base

AUTHOR

Cino Hilliard, Jan 31 2003

STATUS

approved

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Last modified July 18 10:35 EDT 2019. Contains 325138 sequences. (Running on oeis4.)