1111320

Appears in sequences

• Number of 5Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=10A208144
• Triangle read by rows: T(n,k) = binomial(n,k)^2 * binomial(2*(n-k), n-k).at n=50A318397