Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
A207809
Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =10a(1) =100a(2) =370a(3) =1970a(4) =9040a(5) =43990a(6) =209050a(7) =1002960a(8) =4793390a(9) =22944590a(10) =109759520a(11) =525189790a(12) =2512723030a(13) =12022412680a(14) =57521607650a(15) =275215898890
External references
- oeis: A207809