Number of (n+1)X7 0..3 arrays with every 2X2 subblock having two or four distinct values, and new values 0..3 introduced in row major order.
A210123
Number of (n+1)X7 0..3 arrays with every 2X2 subblock having two or four distinct values, and new values 0..3 introduced in row major order.
Terms
- a(0) =77642a(1) =10466659a(2) =1421103679a(3) =196165653701
External references
- oeis: A210123