

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
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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.


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CROSSREFS



KEYWORD

more,nonn


AUTHOR



EXTENSIONS



STATUS

approved



