628400

Appears in sequences

• a(n) = 5*(n-1)*a(n-1) -2*(n-1)*a(n-2) with a(0)=0, a(1)=2.at n=6A108209
• Number of n X 4 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=35A224142