Number of permutations in the symmetric group S_n whose order is 1 or prime.
A060181
Number of permutations in the symmetric group S_n whose order is 1 or prime.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =18a(4) =70a(5) =300a(6) =1806a(7) =9100a(8) =37332a(9) =205560a(10) =4853530a(11) =49841616a(12) =789513660a(13) =9021065872a(14) =70737031470a(15) =420565124400
External references
- oeis: A060181