Triangle read by rows: T(n,k) is the number of bicolored Dyck paths of semilength n and having k peaks of the form ud (0 <= k <= n). A bicolored Dyck path is a Dyck path in which each up-step is of two kinds: u and U.
A114608
Triangle read by rows: T(n,k) is the number of bicolored Dyck paths of semilength n and having k peaks of the form ud (0 <= k <= n). A bicolored Dyck path is a Dyck path in which each up-step is of two kinds: u and U.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =4a(5) =1a(6) =11a(7) =19a(8) =9a(9) =1a(10) =45a(11) =96a(12) =66a(13) =16a(14) =1a(15) =197a(16) =501a(17) =450a(18) =170a(19) =25a(20) =1a(21) =903a(22) =2668a(23) =2955a(24) =1520a(25) =365a(26) =36a(27) =1a(28) =4279a(29) =14407
External references
- oeis: A114608