Triangle of T(n,k)=number of peakless Motzkin paths of length n containing k valleys (can be easily expressed using RNA secondary structure terminology).
A089738
Triangle of T(n,k)=number of peakless Motzkin paths of length n containing k valleys (can be easily expressed using RNA secondary structure terminology).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =16a(7) =1a(8) =33a(9) =4a(10) =69a(11) =13a(12) =146a(13) =38a(14) =1a(15) =312a(16) =106a(17) =5a(18) =673a(19) =284a(20) =21a(21) =1463a(22) =742a(23) =77a(24) =1a(25) =3202a(26) =1904a(27) =261a(28) =6a(29) =7050
External references
- oeis: A089738