Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically.

A254920

Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically.

Terms

    a(0) =1302500a(1) =20154545a(2) =191418723a(3) =522548222a(4) =2236028616a(5) =7539746842a(6) =25105585331a(7) =94832985856a(8) =330074130597

External references