Number of orbits of length n under the full 16-shift (whose periodic points are counted by A001025).

A060219

Number of orbits of length n under the full 16-shift (whose periodic points are counted by A001025).

Terms

    a(0) =16a(1) =120a(2) =1360a(3) =16320a(4) =209712a(5) =2795480a(6) =38347920a(7) =536862720a(8) =7635496960a(9) =109951057896

External references