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A163861 Number of different 5th-power (quintic) mappings of a finite set of n elements into itself. 3
1, 1, 4, 21, 148, 1281, 12942, 150955, 2042272, 31912425, 567737326 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
The same as A102687 (square composition), A163859 (cubic composition), A163860 (4th-power composition), here a(n) is the number of different mappings g that admit at least one mapping f as the 5th-order root (g=fofofofof) in terms of the composition.
LINKS
CROSSREFS
Column k=5 of A247026.
Sequence in context: A307525 A345749 A327872 * A247054 A006153 A286286
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 June 12 11:47 EDT 2024. Contains 373331 sequences. (Running on oeis4.)