Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal minimum minus antidiagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal maximum nondecreasing vertically.
A253516
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal minimum minus antidiagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal maximum nondecreasing vertically.
Terms
- a(0) =81a(1) =2724a(2) =30013a(3) =162815a(4) =673229a(5) =2662626a(6) =10168992a(7) =38531995a(8) =145820265a(9) =550386072a(10) =2065878028
External references
- oeis: A253516