Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n and having sum of pyramid heights equal to k.

A094449

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n and having sum of pyramid heights equal to k.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =0a(5) =2a(6) =1a(7) =0a(8) =0a(9) =4a(10) =4a(11) =2a(12) =0a(13) =0a(14) =8a(15) =13a(16) =8a(17) =5a(18) =0a(19) =0a(20) =16a(21) =42a(22) =26a(23) =20a(24) =12a(25) =0a(26) =0a(27) =32a(28) =139a(29) =85

External references