Number of (n+1) X 2 0..2 arrays containing all values 0..2 with every 2 X 2 subblock having two or three distinct values, and new values 0..2 introduced in row major order.

A210005

Number of (n+1) X 2 0..2 arrays containing all values 0..2 with every 2 X 2 subblock having two or three distinct values, and new values 0..2 introduced in row major order.

Terms

    a(0) =6a(1) =88a(2) =893a(3) =8217a(4) =73035a(5) =640495a(6) =5586791a(7) =48624987a(8) =422832951a(9) =3675525835a(10) =31945165919a(11) =277628591571

External references