Number of (n+1)X4 0..3 arrays with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order.
A210399
Number of (n+1)X4 0..3 arrays with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order.
Terms
- a(0) =549a(1) =29647a(2) =1596154a(3) =85979301a(4) =4631193134a(5) =249456180709
External references
- oeis: A210399