Characteristic polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda + 2\right) \left(\lambda^{2} + 4 \lambda + 31\right) \left(\lambda^{12} + 9 \lambda^{11} - 46 \lambda^{10} - 872 \lambda^{9} - 3726 \lambda^{8} - 1618 \lambda^{7} + 44970 \lambda^{6} + 237502 \lambda^{5} + 828172 \lambda^{4} + 2878324 \lambda^{3} + 8888010 \lambda^{2} + 17390441 \lambda + 17699077\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda + 2\right) \left(\lambda^{2} + 4 \lambda + 31\right) \left(\lambda^{12} + 9 \lambda^{11} - 46 \lambda^{10} - 872 \lambda^{9} - 3726 \lambda^{8} - 1618 \lambda^{7} + 44970 \lambda^{6} + 237502 \lambda^{5} + 828172 \lambda^{4} + 2878324 \lambda^{3} + 8888010 \lambda^{2} + 17390441 \lambda + 17699077\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 0 & 4 & 4 & 0 & 0 & 0 & 0 & 6 & 12 & 6 & 8 & 8 & 8 & 16 & 10 \\ 1 & -1 & 0 & 0 & 0 & 4 & 4 & 0 & 0 & 0 & 0 & 6 & 12 & 6 & 6 & 8 \\ 1 & 0 & -1 & 1 & 0 & 0 & 0 & 0 & 0 & 4 & 2 & 0 & 0 & 3 & 6 & 8 \\ 1 & 0 & 2 & -1 & 1 & 0 & 0 & 2 & 0 & 0 & -2 & 0 & 0 & -3 & 0 & 0 \\ 1 & 1 & 0 & 0 & -1 & 0 & 0 & -2 & 4 & 4 & 4 & 0 & 0 & 0 & 6 & 0 \\ 0 & 1 & 1 & 0 & 0 & -2 & 1 & 0 & 0 & 0 & 0 & 0 & 4 & 2 & 0 & 6 \\ 0 & 1 & 0 & 1 & 0 & 2 & -2 & 1 & 0 & 0 & 0 & 0 & 0 & -2 & 0 & 0 \\ 0 & 1 & 0 & 0 & 2 & 0 & 0 & -1 & 0 & 0 & 0 & 4 & 4 & 4 & 4 & 6 \\ 0 & 0 & 1 & -\frac{1}{2} & 1 & 1 & 0 & 0 & -2 & -1 & \frac{1}{2} & -2 & 0 & -1 & 4 & 0 \\ 0 & 0 & 2 & \frac{3}{2} & 0 & 0 & 0 & 0 & 1 & 0 & \frac{1}{2} & 2 & 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & 2 & 1 & 0 & 1 & 0 & 2 & 2 & -1 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 1 & -\frac{1}{2} & 1 & 2 & 0 & -\frac{1}{2} & -2 & -1 & \frac{1}{2} & -1 & 4 \\ 0 & 0 & 0 & 0 & 0 & 2 & \frac{3}{2} & 0 & 0 & 1 & 0 & 1 & -1 & \frac{1}{2} & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 2 & 1 & 0 & 0 & 3 & 2 & 2 & -1 & 2 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 2 & 3 & \frac{3}{2} & 0 & 1 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 2 & 3 & \frac{3}{2} & 4 & 0\end{pmatrix}\notag\end{equation}$$