$P_7$
$${\rm LOG}\left(P_7\right)=\frac{1}{3}\pi
\left[\begin{array}{rrrrrrr}
\bullet & \bullet & \bullet & \bullet & \bullet & \bullet & \bullet\\
\bullet & 1 & 4 & 5 & 3 & 3 & 1\\
\bullet & 4 & 1 & 3 & 5 & 3 & 1\\
\bullet & 5 & 3 & 1 & 4 & 1 & 3\\
\bullet & 3 & 5 & 4 & 1 & 1 & 3\\
\bullet & 3 & 3 & 1 & 1 & 4 & 5\\
\bullet & 1 & 1 & 3 & 3 & 5 & 4
\end{array}\right]$$