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A163859 Number of different cubes of mappings of a finite set of n elements into itself. 8
1, 1, 4, 19, 116, 985, 11026, 145621, 2199240, 37942785, 743755750 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
The same as A102687, but now for cubic compositions, a(n) is the number of different mappings g that admit at least one mapping f as the cubic root (g=fofof) in terms of the composition.
LINKS
CROSSREFS
Column k=3 of A247026.
Sequence in context: A060907 A245505 A247056 * A197660 A354458 A361532
KEYWORD
more,nonn
AUTHOR
Carlos Alves, Aug 05 2009
EXTENSIONS
a(0) from Alois P. Heinz, Sep 09 2014
a(8)-a(10) from Bert Dobbelaere, Jan 24 2019
STATUS
approved

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Last modified May 19 00:35 EDT 2024. Contains 372666 sequences. (Running on oeis4.)