107796

Appears in sequences

• Triangle read by rows: T(n,k) is number of peakless Motzkin paths of length n and having k uhh...hd's starting at level 0, where u=(1,1), h=(1,0) and d=(1,-1) (can be easily expressed using RNA secondary structure terminology).at n=57A098071
• Numbers k such that k and k^2 use only the digits 0, 1, 6, 7 and 9.at n=9A136877
• a(n) = Sum_{j=0..n} A000293(j).at n=14A143123
• Number of peakless Motzkin paths of length n and having no uhh...hd's starting at level 0, where u = (1, 1), h = (1, 0) and d = (1, -1).at n=17A190159