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Search: id:A067109
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A067109 Number of occurrence of the string n in n! (A000142). +0
3
1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 2, 0, 2, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 1, 1, 0, 2, 1, 1, 0, 0, 2, 0, 0, 1, 0, 0, 2, 2, 4, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 2, 1, 2, 5, 0 (list; graph; listen)
OFFSET

1,37

COMMENT

a(A033180(n)) > 0. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 23 2008]

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

FORMULA

a(4) = 1 as 4!=24 and 4 occurs once. a(5) = 0 as 5! = 120 does not contain a 5. a(20) = 1 as 20! = 2432902008176640000 and 20 occurs once.

MATHEMATICA

Table[ Length[ StringPosition[ ToString[n! ], ToString[n]]], {n, 1, 75} ]

CROSSREFS

Sequence in context: A139215 A139216 A092078 this_sequence A030219 A035147 A101673

Adjacent sequences: A067106 A067107 A067108 this_sequence A067110 A067111 A067112

KEYWORD

nonn,base

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 08 2002

EXTENSIONS

More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 09 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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