Number of nX7 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).
A208049
Number of nX7 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).
Terms
- a(0) =122a(1) =2048a(2) =41932a(3) =931968a(4) =21472544a(5) =502504448a(6) =11838995200a(7) =279733684992
External references
- oeis: A208049