Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.

A254815

Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically.

Terms

    a(0) =55904a(1) =522294a(2) =5525547a(3) =52855290a(4) =463784139a(5) =4043573364a(6) =32502418874a(7) =255406348232

External references