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

A128731

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =5a(5) =5a(6) =14a(7) =21a(8) =1a(9) =42a(10) =84a(11) =11a(12) =132a(13) =330a(14) =80a(15) =1a(16) =429a(17) =1287a(18) =484a(19) =19a(20) =1430a(21) =5005a(22) =2639a(23) =210a(24) =1a(25) =4862a(26) =19448a(27) =13468a(28) =1780a(29) =29

External references