1/4 the number of (n+1)X4 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.
A210350
1/4 the number of (n+1)X4 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.
Terms
- a(0) =4615a(1) =423694a(2) =38415623a(3) =3506487749a(4) =320128196268
External references
- oeis: A210350