Triangle read by rows: T(n,k) is the number of peakless Motzkin paths in which the k-th step is the leftmost (1,0)-step (can be easily expressed using RNA secondary structure terminology).
A098086
Triangle read by rows: T(n,k) is the number of peakless Motzkin paths in which the k-th step is the leftmost (1,0)-step (can be easily expressed using RNA secondary structure terminology).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =4a(7) =3a(8) =1a(9) =8a(10) =6a(11) =3a(12) =17a(13) =13a(14) =6a(15) =1a(16) =37a(17) =28a(18) =13a(19) =4a(20) =82a(21) =62a(22) =30a(23) =10a(24) =1a(25) =185a(26) =140a(27) =69a(28) =24a(29) =5
External references
- oeis: A098086