Triangle T(n, k) for the number of permutations of symmetric group S_n with an odd number of non-fixed point cycles, without k <= n particular fixed points.
A374420
Triangle T(n, k) for the number of permutations of symmetric group S_n with an odd number of non-fixed point cycles, without k <= n particular fixed points.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =1a(6) =5a(7) =4a(8) =3a(9) =2a(10) =20a(11) =15a(12) =11a(13) =8a(14) =6a(15) =84a(16) =64a(17) =49a(18) =38a(19) =30a(20) =24a(21) =424a(22) =340a(23) =276a(24) =227a(25) =189a(26) =159a(27) =135a(28) =2680a(29) =2256
External references
- oeis: A374420