Number of nX3 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.
A207010
Number of nX3 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column.
Terms
- a(0) =23a(1) =529a(2) =7891a(3) =130165a(4) =2113177a(5) =34303001a(6) =555815721a(7) =9009608765a(8) =146090588449
External references
- oeis: A207010