Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n and having k up steps starting at an odd height.
A101920
Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n and having k up steps starting at an odd height.
Terms
- a(0) =2a(1) =5a(2) =1a(3) =13a(4) =8a(5) =1a(6) =34a(7) =42a(8) =13a(9) =1a(10) =89a(11) =183a(12) =102a(13) =19a(14) =1a(15) =233a(16) =717a(17) =624a(18) =205a(19) =26a(20) =1a(21) =610a(22) =2622a(23) =3275a(24) =1650a(25) =366a(26) =34a(27) =1a(28) =1597a(29) =9134
External references
- oeis: A101920