Number of n X 4 0..1 arrays avoiding 0 0 1 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
A207250
Number of n X 4 0..1 arrays avoiding 0 0 1 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =8a(1) =64a(2) =216a(3) =940a(4) =3776a(5) =15652a(6) =64176a(7) =263976a(8) =1084380a(9) =4456764a(10) =18314496a(11) =75265524a(12) =309304372a(13) =1271098480a(14) =5223614592a(15) =21466618480a(16) =88217749664a(17) =362533690524
External references
- oeis: A207250