Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically.
A207719
Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically.
Terms
- a(0) =9a(1) =81a(2) =387a(3) =2205a(4) =12015a(5) =66339a(6) =364869a(7) =2009223a(8) =11059965a(9) =60888177a(10) =335192787a(11) =1845279405a(12) =10158455727a(13) =55923440859a(14) =307864679445
External references
- oeis: A207719