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A008906 Number of digits in n! excluding final zeros. 1
1, 1, 1, 1, 2, 2, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 15, 16, 18, 19, 20, 20, 21, 23, 24, 25, 26, 27, 29, 30, 32, 33, 34, 36, 37, 39, 39, 41, 43, 44, 46, 47, 48, 50, 52, 53, 53, 55, 56, 58, 60, 61, 62, 64, 66, 68, 68, 70, 72, 74, 76, 76, 78, 80, 82, 84, 85, 86, 88, 90, 92, 92, 94 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

T. D. Noe, Table of n, a(n) for n = 0..1000

Index entries for sequences related to final digits of numbers

FORMULA

a(n) = A034886(n) - A027868(n). - Michel Marcus, Jun 24 2013

CROSSREFS

Cf. A027868.

Sequence in context: A029096 A194820 A076872 * A029074 A258741 A036016

Adjacent sequences:  A008903 A008904 A008905 * A008907 A008908 A008909

KEYWORD

nonn,base,easy

AUTHOR

Russ Cox

STATUS

approved

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Last modified September 20 16:22 EDT 2017. Contains 292276 sequences.