Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n having k ascents of length 1.

A128749

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n having k ascents of length 1.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =0a(5) =1a(6) =4a(7) =5a(8) =0a(9) =1a(10) =14a(11) =12a(12) =9a(13) =0a(14) =1a(15) =44a(16) =53a(17) =25a(18) =14a(19) =0a(20) =1a(21) =150a(22) =196a(23) =132a(24) =44a(25) =20a(26) =0a(27) =1a(28) =520a(29) =777

External references