Number of (n+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.
A254812
Number of (n+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.
Terms
- a(0) =512a(1) =15848a(2) =748444a(3) =52855290a(4) =5252066348a(5) =913402797416
External references
- oeis: A254812