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A239766 Number of pairs of functions (f,g) from a set of n elements into itself satisfying f(f(x)) = f(g(g(x))). 0

%I #9 Jul 18 2014 12:34:48

%S 1,1,10,195,5992,260085,14922576,1087100371

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

%Y Cf. A181162.

%K nonn,more

%O 0,3

%A _Chad Brewbaker_, Mar 26 2014

%E a(6)-a(7) from _Giovanni Resta_, Mar 28 2014

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Last modified May 14 03:59 EDT 2024. Contains 372528 sequences. (Running on oeis4.)