Number of (n+2) X (2+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum minus antidiagonal minimum nonincreasing horizontally and nondecreasing vertically.
A253538
Number of (n+2) X (2+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum minus antidiagonal minimum nonincreasing horizontally and nondecreasing vertically.
Terms
- a(0) =3328a(1) =33568a(2) =317696a(3) =2801200a(4) =24576256a(5) =212432512a(6) =1834356992a(7) =15757354000a(8) =135327129856
External references
- oeis: A253538