39249768

Appears in sequences

• A sum with next-to-central binomial coefficients of even order, Catalan related.at n=11A029760
• Total number of two-element anti-chains over all ordered trees on n edges.at n=13A139262
• Number of peaks at height >= 2 in all dispersed Dyck paths of length n (i.e., Motzkin paths of length n with no (1,0) steps at positive heights).at n=26A191309
• Numerator of variance of n-th row of Pascal's triangle.at n=13A301278