Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k UDL's (n >= 0; 0 <= k <= floor((n+1)/2)).

A128728

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k UDL's (n >= 0; 0 <= k <= floor((n+1)/2)).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =4a(6) =20a(7) =16a(8) =71a(9) =64a(10) =2a(11) =262a(12) =261a(13) =20a(14) =994a(15) =1084a(16) =141a(17) =3852a(18) =4572a(19) =854a(20) =7a(21) =15183a(22) =19520a(23) =4772a(24) =112a(25) =60686a(26) =84139a(27) =25416a(28) =1128a(29) =245412

External references