Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k primitive Dyck factors (n >= 0; 0 <= k <= n).

A129154

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k primitive Dyck factors (n >= 0; 0 <= k <= n).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =1a(6) =4a(7) =3a(8) =2a(9) =1a(10) =15a(11) =11a(12) =6a(13) =3a(14) =1a(15) =59a(16) =41a(17) =22a(18) =10a(19) =4a(20) =1a(21) =241a(22) =159a(23) =84a(24) =38a(25) =15a(26) =5a(27) =1a(28) =1011a(29) =639

External references