Number of endofunctions f on [n] such that f^8(i) = f(i) for all i in [n].
A245504
Number of endofunctions f on [n] such that f^8(i) = f(i) for all i in [n].
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =41a(5) =196a(6) =1057a(7) =7042a(8) =87473a(9) =2004328a(10) =50881121a(11) =1200507694a(12) =26179091017a(13) =538344201292
External references
- oeis: A245504