Number of nX4 0..3 arrays avoiding the pattern z z+1 z in any row or column.
A207130
Number of nX4 0..3 arrays avoiding the pattern z z+1 z in any row or column.
Terms
- a(0) =232a(1) =53824a(2) =10372917a(3) =1981367324a(4) =379555408075
External references
- oeis: A207130