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A073575 Sum of factorial numbers dividing n. 1
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; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

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

CROSSREFS

Cf. A000142, A055881, A007489.

Sequence in context: A016572 A072860 A068503 * A146431 A115716 A079412

Adjacent sequences:  A073572 A073573 A073574 * A073576 A073577 A073578

KEYWORD

nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 27 2002

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Last modified February 17 02:48 EST 2012. Contains 205978 sequences.