Number of n X 7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
A208068
Number of n X 7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =42a(1) =1764a(2) =6216a(3) =21904a(4) =48840a(5) =108900a(6) =198000a(7) =360000a(8) =582000a(9) =940900a(10) =1408440a(11) =2108304a(12) =2988216a(13) =4235364a(14) =5762400a(15) =7840000a(16) =10332000a(17) =13616100a(18) =17490600a(19) =22467600a(20) =28259880a(21) =35545444a(22) =43928016a(23) =54287424a(24) =66090960a(25) =80460900a(26) =96696600
External references
- oeis: A208068