Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7.
A252572
Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 5 6 or 7.
Terms
- a(0) =5401a(1) =23007a(2) =92725a(3) =395500a(4) =2538669a(5) =11285381a(6) =53055996a(7) =337833222a(8) =1537313257a(9) =7468646942a(10) =48266349656a(11) =221948510836
External references
- oeis: A252572