Triangle read by rows: T(n,k) (0 <= k <= ceiling(n/2)-1) is the number of (1,0) steps at level k in all peakless Motzkin paths of length n (can be easily translated into RNA secondary structure terminology).
A110237
Triangle read by rows: T(n,k) (0 <= k <= ceiling(n/2)-1) is the number of (1,0) steps at level k in all peakless Motzkin paths of length n (can be easily translated into RNA secondary structure terminology).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =1a(4) =6a(5) =4a(6) =13a(7) =10a(8) =1a(9) =28a(10) =24a(11) =6a(12) =62a(13) =59a(14) =21a(15) =1a(16) =140a(17) =144a(18) =62a(19) =8a(20) =320a(21) =350a(22) =174a(23) =36a(24) =1a(25) =740a(26) =852a(27) =474a(28) =128a(29) =10
External references
- oeis: A110237