Number of nX3 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal.
A207278
Number of nX3 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal.
Terms
- a(0) =58a(1) =3364a(2) =121014a(3) =4686270a(4) =181121542a(5) =6979630118a(6) =268686202446
External references
- oeis: A207278