Triangle T(n,k) (1 <= k <= n) read by rows: T(n,k) is the number of permutations of [1..n] with k components.
A059438
Triangle T(n,k) (1 <= k <= n) read by rows: T(n,k) is the number of permutations of [1..n] with k components.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =2a(5) =1a(6) =13a(7) =7a(8) =3a(9) =1a(10) =71a(11) =32a(12) =12a(13) =4a(14) =1a(15) =461a(16) =177a(17) =58a(18) =18a(19) =5a(20) =1a(21) =3447a(22) =1142a(23) =327a(24) =92a(25) =25a(26) =6a(27) =1a(28) =29093a(29) =8411
External references
- oeis: A059438