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%I #9 Jul 18 2014 12:38:59
%S 1,1,8,141,4192,178225,10218096,762401773
%N Number of pairs of functions (f,g) from a set of n elements into itself satisfying f(g(g(x))) = g(f(f(x))).
%Y Cf. A000248, A000949.
%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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