Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having degree of asymmetry k (n >= 1, 0 <= k <= n-1).

A298645

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having degree of asymmetry k (n >= 1, 0 <= k <= n-1).

Terms

    a(0) =1a(1) =2a(2) =0a(3) =3a(4) =0a(5) =2a(6) =6a(7) =0a(8) =6a(9) =2a(10) =10a(11) =0a(12) =16a(13) =8a(14) =8a(15) =20a(16) =0a(17) =40a(18) =24a(19) =32a(20) =16a(21) =35a(22) =0a(23) =90a(24) =60a(25) =108a(26) =84a(27) =52a(28) =70a(29) =0

External references