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

A252135

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

Terms

    a(0) =439a(1) =1183a(2) =5233a(3) =22766a(4) =96481a(5) =409028a(6) =1741344a(7) =7424211a(8) =31630024a(9) =134638253a(10) =573239601a(11) =2441382308a(12) =10396957389a(13) =44272817558a(14) =188528190392a(15) =802834481181

External references