Number of orbits of length n under the map whose periodic points are counted by A061684.
A091315
Number of orbits of length n under the map whose periodic points are counted by A061684.
Terms
- a(0) =1a(1) =2a(2) =21a(3) =402a(4) =13805a(5) =761154a(6) =62523664a(7) =7237970648
External references
- oeis: A091315