Number of fixed-point-free subgroups of the symmetric group S_n.
A116693
Number of fixed-point-free subgroups of the symmetric group S_n.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =2a(4) =15a(5) =50a(6) =874a(7) =3515a(8) =94638a(9) =634630a(10) =18368060a(11) =149965474a(12) =7392944314a(13) =61596293433
External references
- oeis: A116693