2249204040domain: NAppears in sequencesa(n) = (n+1)*binomial(n+1,14).at n=15A027774a(n) = (n+1)*binomial(n+1, 15).at n=14A027775Number of turns in all left factors of Dyck paths of length n.at n=30A191527Number of profiles in domino tiling of a 2*n checkboard.at n=29A218073a(n) = (2n+1)^2*Catalan(n).at n=14A257589