Number of nX4 0..3 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.
A207578
Number of nX4 0..3 arrays avoiding the pattern z+1 z+1 z horizontally and z-1 z-1 z vertically.
Terms
- a(0) =232a(1) =53824a(2) =10346480a(3) =1970169608a(4) =374571613718
External references
- oeis: A207578