Number of (7+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8.
A252622
Number of (7+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8.
Terms
- a(0) =9927a(1) =75859a(2) =342559a(3) =1597203a(4) =11003134a(5) =51303874a(6) =264208755a(7) =1700337789a(8) =7930822332a(9) =41993076275a(10) =265748176256
External references
- oeis: A252622