Number of (n+2) X (7+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.
A252614
Number of (n+2) X (7+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) =25137a(1) =71856a(2) =437805a(3) =1358948a(4) =11582748a(5) =82404422a(6) =264208755a(7) =2251674722a(8) =16173953810a(9) =51883573465a(10) =440765079936
External references
- oeis: A252614