Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 8.
A252613
Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 8.
Terms
- a(0) =12421a(1) =31514a(2) =156499a(3) =433665a(4) =3108884a(5) =18149682a(6) =51303874a(7) =373181073a(8) =2202127052a(9) =6156657609a(10) =45414463138a(11) =270053121307a(12) =748380393975
External references
- oeis: A252613