Number of nX6 0..4 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..4 introduced in row major order.
A209501
Number of nX6 0..4 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..4 introduced in row major order.
Terms
- a(0) =202a(1) =133380a(2) =137627625a(3) =142937856372
External references
- oeis: A209501