3538939

Appears in sequences

• Number of (n+1)X(5+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=16A250653
• a(n) = 27*2^n - 5.at n=17A304387