Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 4 6 or 7.

A252103

Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 4 6 or 7.

Terms

    a(0) =38599a(1) =50222a(2) =252110a(3) =1129324a(4) =7637420a(5) =41913367a(6) =204205735a(7) =1415634760a(8) =8021937546a(9) =40908964043a(10) =287473121113

External references