Number of (n+1)X6 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.
A209811
Number of (n+1)X6 0..3 arrays with every 2X2 subblock having two distinct values, and new values 0..3 introduced in row major order.
Terms
- a(0) =5193a(1) =244208a(2) =11912459a(3) =617966001a(4) =32449786403
External references
- oeis: A209811