Number of (n+1)X6 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, three or four distinct values, and new values 0..3 introduced in row major order.

A210083

Number of (n+1)X6 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, three or four distinct values, and new values 0..3 introduced in row major order.

Terms

    a(0) =109194a(1) =88297042a(2) =68665065250

External references