25947612

Appears in sequences

• a(n) = (binomial(4*n, 2*n) + binomial(2*n, n)^2)/2.at n=7A036910
• a(n) = Sum_{k=0..7} binomial(14,k)*binomial(n,k).at n=14A247612
• a(n) = Sum_{k=0..floor(n/2)} binomial(n, k)^2.at n=14A277247