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A239758 Number of pairs of functions (f,g) on a set of n elements into itself satisfying f(g(f(x))) = g(f(g(x))). 0
1, 1, 8, 147, 4672, 221245, 14695656, 1297497103 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
CROSSREFS
Sequence in context: A064331 A230938 A351922 * A239759 A279127 A259991
KEYWORD
nonn,more
AUTHOR
Chad Brewbaker, Mar 26 2014
EXTENSIONS
a(6)-a(7) from Giovanni Resta, Mar 28 2014
STATUS
approved

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)