Number of permutations T(n,k) in S_n containing an increasing subsequence of length k; triangle T(n,k), n>=1, 1<=k<=n, read by rows.
A214152
Number of permutations T(n,k) in S_n containing an increasing subsequence of length k; triangle T(n,k), n>=1, 1<=k<=n, read by rows.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =6a(4) =5a(5) =1a(6) =24a(7) =23a(8) =10a(9) =1a(10) =120a(11) =119a(12) =78a(13) =17a(14) =1a(15) =720a(16) =719a(17) =588a(18) =207a(19) =26a(20) =1a(21) =5040a(22) =5039a(23) =4611a(24) =2279a(25) =458a(26) =37a(27) =1a(28) =40320a(29) =40319
External references
- oeis: A214152