Number of pairs of endofunctions f, g on [n] satisfying f(g^n(i)) = f(i) for all i in [n].
A245911
Number of pairs of endofunctions f, g on [n] satisfying f(g^n(i)) = f(i) for all i in [n].
Terms
- a(0) =1a(1) =1a(2) =12a(3) =207a(4) =9184a(5) =173225a(6) =46097856a(7) =729481375a(8) =454190410752
External references
- oeis: A245911