Number of n X 2 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, vertically or antidiagonally.
A232303
Number of n X 2 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, vertically or antidiagonally.
Terms
- a(0) =3a(1) =37a(2) =257a(3) =1915a(4) =14223a(5) =105411a(6) =781873a(7) =5798587a(8) =43004317a(9) =318935945a(10) =2365343683a(11) =17542244471a(12) =130099628443a(13) =964865884537
External references
- oeis: A232303