Number of (n+1) X 4 0..2 arrays with every 2 X 2 subblock having one or three distinct values, and new values 0..2 introduced in row major order.
A210102
Number of (n+1) X 4 0..2 arrays with every 2 X 2 subblock having one or three distinct values, and new values 0..2 introduced in row major order.
Terms
- a(0) =135a(1) =1690a(2) =20687a(3) =254314a(4) =3125615a(5) =38420586a(6) =472285295a(7) =5805666474a(8) =71367850223a(9) =877312746218
External references
- oeis: A210102