Number of nX3 0..1 arrays avoiding 0 1 0 horizontally and 1 0 1 vertically.
A206878
Number of nX3 0..1 arrays avoiding 0 1 0 horizontally and 1 0 1 vertically.
Terms
- a(0) =7a(1) =49a(2) =230a(3) =1011a(4) =4705a(5) =22412a(6) =105936a(7) =497727a(8) =2339729a(9) =11013295a(10) =51846666a(11) =244013222a(12) =1148355280a(13) =5404522372a(14) =25435928407a(15) =119711433603a(16) =563405871570
External references
- oeis: A206878