127029

Appears in sequences

• Number of Dyck paths of semilength n, having no ascents and no descents of length 1, and having no peaks at odd level.at n=22A167635
• Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = number of normalized 2n-plets associated to trees with k edges.at n=40A294439