Triangle read by rows: T(n,k) = number of permutations in symmetric group S_n with an even number of non-fixed point cycles, without k<=n particular fixed points.
A374419
Triangle read by rows: T(n,k) = number of permutations in symmetric group S_n with an even number of non-fixed point cycles, without k<=n particular fixed points.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =0a(5) =0a(6) =1a(7) =0a(8) =0a(9) =0a(10) =4a(11) =3a(12) =3a(13) =3a(14) =3a(15) =36a(16) =32a(17) =29a(18) =26a(19) =23a(20) =20a(21) =296a(22) =260a(23) =228a(24) =199a(25) =173a(26) =150a(27) =130a(28) =2360a(29) =2064
External references
- oeis: A374419