Number of orbits of length n under the map whose periodic points are counted by A047863.

A060224

Number of orbits of length n under the map whose periodic points are counted by A047863.

Terms

    a(0) =2a(1) =2a(2) =8a(3) =39a(4) =288a(5) =3046a(6) =47232a(7) =1061100a(8) =34385064a(9) =1601137110a(10) =106806380544

External references