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A067109
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Number of occurrence of the string n in n! (A000142).
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3
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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; refs; listen; history; internal format)
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OFFSET
| 1,37
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COMMENTS
| a(A033180(n)) > 0. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 23 2008]
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
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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.
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MATHEMATICA
| Table[ Length[ StringPosition[ ToString[n! ], ToString[n]]], {n, 1, 75} ]
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CROSSREFS
| Sequence in context: A139215 A139216 A092078 * A030219 A035147 A101673
Adjacent sequences: A067106 A067107 A067108 * A067110 A067111 A067112
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KEYWORD
| nonn,base
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 08 2002
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EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 09 2002
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