Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nonincreasing horizontally and nondecreasing vertically.
A253539
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nonincreasing horizontally and nondecreasing vertically.
Terms
- a(0) =20480a(1) =317696a(2) =4414976a(3) =57759744a(4) =751577856a(5) =9765667072a(6) =127181862144
External references
- oeis: A253539