Triangle read by rows: T(n,k) (0 <= k <= ceiling(n/2)-2) is the number of (1,1) steps starting at level k in all peakless Motzkin paths of length n (can be easily translated into RNA secondary structure terminology).
A110238
Triangle read by rows: T(n,k) (0 <= k <= ceiling(n/2)-2) is the number of (1,1) steps starting 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) =3a(2) =7a(3) =1a(4) =17a(5) =5a(6) =41a(7) =16a(8) =1a(9) =98a(10) =46a(11) =7a(12) =235a(13) =127a(14) =29a(15) =1a(16) =565a(17) =340a(18) =99a(19) =9a(20) =1362a(21) =893a(22) =310a(23) =46a(24) =1a(25) =3294a(26) =2318a(27) =921a(28) =184a(29) =11
External references
- oeis: A110238