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Search: id:A116988
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| A116988 |
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Sum of digits of (10^n)!. |
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+0
1
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| 1, 27, 648, 10539, 149346, 1938780, 23903442, 284222502, 3292100235
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Cf. A004152 Sum of digits of factorial numbers, A113364 1,27,648,16245,... with first three terms coinciding with this SEQ.
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EXAMPLE
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a(1)=27 because 10!=3628800 and 3+6+2+8+8+0+0=27.
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MATHEMATICA
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Do[Print[Total[IntegerDigits[(10^n)! ]]], {n, 0, 7}]
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CROSSREFS
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Cf. A004152, A113364.
Sequence in context: A099753 A046359 A060603 this_sequence A113364 A095898 A014914
Adjacent sequences: A116985 A116986 A116987 this_sequence A116989 A116990 A116991
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KEYWORD
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hard,more,nonn,base
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Apr 02 2006
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EXTENSIONS
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One more term from Ryan Propper (rpropper(AT)cs.stanford.edu), Jun 27 2007
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