Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally and vertically.
A254357
Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally and vertically.
Terms
- a(0) =72939a(1) =998646a(2) =14816409a(3) =179564001a(4) =1960008103a(5) =20623554260a(6) =209075168007
External references
- oeis: A254357