A239764 Number of pairs of functions (f,g) from a set of n elements into itself satisfying f(f(f(x))) = f(g(x)).

1, 1, 10, 183, 5128, 203085, 10709136, 722183371

Offset: 0

Author

Chad Brewbaker, Mar 26 2014

Keywords

• nonn
• more

Crossrefs

Cf. A181162.

Extensions

a(6)-a(7) from Giovanni Resta, Mar 28 2014