Number of nX7 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal.
A207282
Number of nX7 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) =10686a(1) =114190596a(2) =268686202446
External references
- oeis: A207282