294296640

Appears in sequences

• a(n) = binomial(n+5,5) * binomial(n+5,4)/(n+5).at n=28A006857
• Triangle T(n, k) = A001263(n*f(n,k) + 1, f(n,k) + 1), where f(n, k) = k if k <= floor(n/2) otherwise n-k, read by rows.at n=40A157243