Number of nX6 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order.
A204299
Number of nX6 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order.
Terms
- a(0) =0a(1) =212a(2) =19540a(3) =1972288a(4) =277234340a(5) =47309058644
External references
- oeis: A204299