Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A253960
Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =11244672a(1) =405335284a(2) =18766879524a(3) =842101547904
External references
- oeis: A253960