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A073575 Sum of factorial numbers dividing n. +0
2
1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 33, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 33, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 33, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 9, 1, 3, 1, 3, 1, 33, 1, 3, 1, 3, 1, 9 (list; graph; listen)
OFFSET

1,2

FORMULA

G.f.: Sum_{k>0} k!*x^(k!)/(1-x^(k!)). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Dec 13 2002

CROSSREFS

Cf. A000142, A055881, A007489.

Sequence in context: A016572 A072860 A068503 this_sequence A115716 A079412 A099906

Adjacent sequences: A073572 A073573 A073574 this_sequence A073576 A073577 A073578

KEYWORD

nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)Eunet.yu), Aug 27 2002

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.


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