Number of (n+1) X 2 0..3 arrays containing all values 0..3 with every 2 X 2 subblock having one or three distinct values, and new values 0..3 introduced in row major order.
A210302
Number of (n+1) X 2 0..3 arrays containing all values 0..3 with every 2 X 2 subblock having one or three distinct values, and new values 0..3 introduced in row major order.
Terms
- a(0) =0a(1) =29a(2) =414a(3) =4553a(4) =45890a(5) =446093a(6) =4266246a(7) =40490097a(8) =382887722a(9) =3614390197a(10) =34090440494a(11) =321405533785
External references
- oeis: A210302