Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having length of second ascent equal to k (0<=k<=n-1).

A114276

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having length of second ascent equal to k (0<=k<=n-1).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =8a(8) =4a(9) =1a(10) =1a(11) =22a(12) =13a(13) =5a(14) =1a(15) =1a(16) =64a(17) =41a(18) =19a(19) =6a(20) =1a(21) =1a(22) =196a(23) =131a(24) =67a(25) =26a(26) =7a(27) =1a(28) =1a(29) =625

External references