807300

Appears in sequences

• Eighth column of Catalan triangle A009766.at n=14A064061
• a(n) = binomial(4*n,n)*(2*n+1)/(3*n+1).at n=7A126596
• Central terms of the triangle in A208101.at n=14A208983
• Number A(n,k) of standard Young tableaux of shape [n*k,n]; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=62A214776
• Number of standard Young tableaux of shape [7n,7].at n=3A215547
• a(n) = 10*binomial(n+4, 5).at n=23A266732
• a(n) = Sum_{k=0..floor(n/4)} binomial(n+k-1,k) * binomial(k,n-4*k).at n=23A389291