Number of n X 4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically.
A232364
Number of n X 4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically.
Terms
- a(0) =15a(1) =887a(2) =39321a(3) =1704619a(4) =74665511a(5) =3271362341a(6) =143280358783
External references
- oeis: A232364