A247056 - OEIS

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A247056

Number of endofunctions on [n] that are the 9th power of an endofunction.

1, 1, 4, 19, 116, 925, 9286, 110131, 1487144, 22607353, 384379370

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..10.

EXAMPLE

a(3) = 19: (1,1,1), (1,1,3), (1,2,1), (1,2,2), (1,2,3), (1,3,2), (1,3,3), (2,1,1), (2,1,2), (2,1,3), (2,2,2), (2,2,3), (2,3,2), (3,1,1), (3,2,1), (3,2,3), (3,3,1), (3,3,2), (3,3,3).

CROSSREFS

Column k=9 of A247026.

Sequence in context: A281817 A060907 A245505 * A163859 A197660 A354458

Adjacent sequences: A247053 A247054 A247055 * A247057 A247058 A247059

KEYWORD

nonn,more

AUTHOR

Alois P. Heinz, Sep 10 2014

EXTENSIONS

a(8)-a(10) from Bert Dobbelaere, Jan 25 2019

STATUS

approved