Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n having k DD's (0 <= k <= n-1 for n >= 1).
A128738
Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n having k DD's (0 <= k <= n-1 for n >= 1).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =5a(5) =4a(6) =1a(7) =14a(8) =14a(9) =7a(10) =1a(11) =41a(12) =51a(13) =33a(14) =11a(15) =1a(16) =124a(17) =188a(18) =145a(19) =69a(20) =16a(21) =1a(22) =386a(23) =690a(24) =627a(25) =362a(26) =131a(27) =22a(28) =1a(29) =1230
External references
- oeis: A128738