Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8.
A252625
Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8.
Terms
- a(0) =81098a(1) =585774a(2) =8098018a(3) =118551272a(4) =1793890764a(5) =27201457322a(6) =412945739530
External references
- oeis: A252625