Number of nX4 0..2 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..2 introduced in row major order.
A223383
Number of nX4 0..2 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..2 introduced in row major order.
Terms
- a(0) =14a(1) =366a(2) =10830a(3) =329840a(4) =10139432a(5) =312609528a(6) =9647052880a(7) =297793167360
External references
- oeis: A223383