Number of nX4 0..3 arrays avoiding the pattern z-1 z-1 z in any row or column.
A207053
Number of nX4 0..3 arrays avoiding the pattern z-1 z-1 z in any row or column.
Terms
- a(0) =232a(1) =53824a(2) =10372376a(3) =1980856064a(4) =377752048996
External references
- oeis: A207053