Number T(n,k) of permutations p of [n] with no fixed points where the maximal displacement of an element equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
A259784
Number T(n,k) of permutations p of [n] with no fixed points where the maximal displacement of an element equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =0a(8) =2a(9) =0a(10) =0a(11) =1a(12) =3a(13) =5a(14) =0a(15) =0a(16) =0a(17) =6a(18) =18a(19) =20a(20) =0a(21) =0a(22) =1a(23) =12a(24) =44a(25) =111a(26) =97a(27) =0a(28) =0a(29) =0
External references
- oeis: A259784