Triangle read by rows: T(n,k) is the number of peakless Motzkin paths of length n having trapezoid weight k (n>=0, k>=0).
A171852
Triangle read by rows: T(n,k) is the number of peakless Motzkin paths of length n having trapezoid weight k (n>=0, k>=0).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =3a(7) =1a(8) =6a(9) =1a(10) =1a(11) =12a(12) =4a(13) =1a(14) =24a(15) =11a(16) =1a(17) =1a(18) =48a(19) =28a(20) =5a(21) =1a(22) =96a(23) =70a(24) =17a(25) =1a(26) =1a(27) =192a(28) =173a(29) =51
External references
- oeis: A171852