Number of nX5 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal.
A207232
Number of nX5 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column, diagonal or antidiagonal.
Terms
- a(0) =161a(1) =25921a(2) =1089017a(3) =77937497a(4) =5437970705a(5) =350097798369
External references
- oeis: A207232