

A163861


Number of different 5thpower (quintic) mappings of a finite set of n elements into itself.


3



1, 1, 4, 21, 148, 1281, 12942, 150955, 2042272, 31912425, 567737326
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OFFSET

0,3


COMMENTS

The same as A102687 (square composition), A163859 (cubic composition), A163860 (4thpower composition), here a(n) is the number of different mappings g that admit at least one mapping f as the 5thorder root (g=fofofofof) in terms of the composition.


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CROSSREFS



KEYWORD

more,nonn


AUTHOR



EXTENSIONS



STATUS

approved



