Number of (n+2)X(1+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 or 5.
A251985
Number of (n+2)X(1+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 or 5.
Terms
- a(0) =2735a(1) =20011a(2) =151635a(3) =1182549a(4) =9375901a(5) =75153161a(6) =607579255a(7) =4944443285a(8) =40443930239a(9) =332131192315
External references
- oeis: A251985