248515
domain: N
Appears in sequences
- Triangle read by rows: T(n,k) is the number of Motzkin paths of length n having k UDH's starting at level 0 (U=(1,1),H=(1,0),D=(1,-1)).at n=45A114581
- Number of Motzkin paths of length n having no UDH's starting at level 0 (U=(1,1), H=(1,0), D=(1,-1)).at n=15A114582
- Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010101.at n=9A260839