Number of 4Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
A207552
Number of 4Xn 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal.
Terms
- a(0) =75a(1) =5625a(2) =327899a(3) =18584111a(4) =1058580304a(5) =60409681388
External references
- oeis: A207552