Triangle read by rows: T(n,k) = the number of ascending runs of length k in the permutations of [n] for k <= n.
A122843
Triangle read by rows: T(n,k) = the number of ascending runs of length k in the permutations of [n] for k <= n.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =7a(4) =4a(5) =1a(6) =32a(7) =21a(8) =6a(9) =1a(10) =180a(11) =130a(12) =41a(13) =8a(14) =1a(15) =1200a(16) =930a(17) =312a(18) =67a(19) =10a(20) =1a(21) =9240a(22) =7560a(23) =2646a(24) =602a(25) =99a(26) =12a(27) =1a(28) =80640a(29) =68880
External references
- oeis: A122843