Number of (n+2)X(3+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 1 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 1 3 4 6 or 7.
A252205
Number of (n+2)X(3+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 1 3 4 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 1 3 4 6 or 7.
Terms
- a(0) =9312a(1) =17276a(2) =110128a(3) =332462a(4) =2908856a(5) =22430534a(6) =65275092a(7) =634915114a(8) =5227154036a(9) =14646511730a(10) =151229828648
External references
- oeis: A252205