Number of nX3 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal.
A206729
Number of nX3 0..2 arrays avoiding the pattern z-1 z-1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =25a(1) =625a(2) =11804a(3) =219714a(4) =4056056a(5) =74880210a(6) =1384146457a(7) =25593791994a(8) =473358801469
External references
- oeis: A206729