596160

Appears in sequences

• Central terms of triangle A120914 (cascadence of (1+2x)^2).at n=7A120917
• Number of n X 5 arrays with every diagonal and antidiagonal of length L containing a permutation of 1..L.at n=6A179810
• Irregular triangle read by rows: T(n,k) is the number of permutations of two copies of 1..n with the sum of the distances between equal numbers having total value n + 2*k, 0 <= k <= n*(n-1)/2.at n=32A335009