Number of 3 X n arrays containing n copies of 0..3-1 with no equal horizontal neighbors and new values introduced sequentially from 0.
A264946
Number of 3 X n arrays containing n copies of 0..3-1 with no equal horizontal neighbors and new values introduced sequentially from 0.
Terms
- a(0) =1a(1) =8a(2) =56a(3) =332a(4) =2350a(5) =16108a(6) =114148a(7) =817280a(8) =5918424a(9) =43251920a(10) =318428920a(11) =2359455400a(12) =17577965926a(13) =131579085320a(14) =989014916960
External references
- oeis: A264946