Number of permutations p of [3n] without fixed points such that p^9 = Id.
A261429
Number of permutations p of [3n] without fixed points such that p^9 = Id.
Terms
- a(0) =1a(1) =2a(2) =40a(3) =42560a(4) =17987200a(5) =8116908800
External references
- oeis: A261429