Number of 4Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.
A284078
Number of 4Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.
Terms
- a(0) =0a(1) =0a(2) =314a(3) =7302a(4) =147864a(5) =2696970a(6) =45973823a(7) =754541156a(8) =11967618472a(9) =185031284250
External references
- oeis: A284078