413270

Appears in sequences

• a(n) = (n+1)*binomial(n+1,8).at n=9A027768
• a(n) = (n+1)*binomial(n+1, 9).at n=8A027769
• Number of turns in all left factors of Dyck paths of length n.at n=18A191527
• Number of profiles in domino tiling of a 2*n checkboard.at n=17A218073
• Triangle of numerators of the coefficients t(n,k) in the formula B(2n) = -sum_{k=1..n-1} t(n,k)*B(2k)*B(2n-2k), where the B() are the even-indexed Bernoulli numbers.at n=31A228969
• a(n) = (2n+1)^2*Catalan(n).at n=8A257589