Number of 2nX4 0..3 arrays with values 0..3 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors.
A198483
Number of 2nX4 0..3 arrays with values 0..3 introduced in row major order and each element equal to an even number of horizontal and vertical neighbors.
Terms
- a(0) =193a(1) =333308a(2) =579476701
External references
- oeis: A198483