130873600

Appears in sequences

• Squares of numbers in array formed from even elements to the right of middle of rows of Pascal triangle.at n=24A014762
• Squares of even square pyramidal numbers.at n=15A014798
• Triangle T(n, k, q) = t(n,q)/(t(k,q)*t(n-k,q)), where t(n, k) = Product_{j=1..n} q-Pochhammer(j, k+1, k+1)/(1-(k+1))^j and t(n, 0) = n!, with q = 2, read by rows.at n=17A156951
• Triangle T(n, k, q) = t(n,q)/(t(k,q)*t(n-k,q)), where t(n, k) = Product_{j=1..n} q-Pochhammer(j, k+1, k+1)/(1-(k+1))^j and t(n, 0) = n!, with q = 2, read by rows.at n=18A156951
• The number of walks of length 2n on the square lattice that start from the origin (0,0) and end at the vertex (2,0).at n=7A337900
• a(n) = binomial(n, floor((n-1)/2))^2.at n=16A378060