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 double rises (0 <= k <= n-1).
A114687
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 double rises (0 <= k <= n-1).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =4a(6) =1a(7) =12a(8) =24a(9) =8a(10) =1a(11) =20a(12) =80a(13) =80a(14) =16a(15) =1a(16) =30a(17) =200a(18) =400a(19) =240a(20) =32a(21) =1a(22) =42a(23) =420a(24) =1400a(25) =1680a(26) =672a(27) =64a(28) =1a(29) =56
External references
- oeis: A114687