Triangle read by rows: T(n,k) is the number of double rise-bicolored Dyck paths (double rises come in two colors; also called marked Dyck paths) of semilength n and having k peaks (1 <= k <= n).
A114656
Triangle read by rows: T(n,k) is the number of double rise-bicolored Dyck paths (double rises come in two colors; also called marked Dyck paths) of semilength n and having k peaks (1 <= k <= n).
Terms
- a(0) =1a(1) =2a(2) =1a(3) =4a(4) =6a(5) =1a(6) =8a(7) =24a(8) =12a(9) =1a(10) =16a(11) =80a(12) =80a(13) =20a(14) =1a(15) =32a(16) =240a(17) =400a(18) =200a(19) =30a(20) =1a(21) =64a(22) =672a(23) =1680a(24) =1400a(25) =420a(26) =42a(27) =1a(28) =128a(29) =1792
External references
- oeis: A114656