Number of (n+1)X7 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order.
A210307
Number of (n+1)X7 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order.
Terms
- a(0) =446093a(1) =339125187a(2) =249417760123
External references
- oeis: A210307