Characteristic polynomial
$$\begin{equation}\left(\lambda + 2\right) \left(\lambda^{2} + 4 \lambda + 8\right) \left(\lambda^{11} + 7 \lambda^{10} - 47 \lambda^{9} - 1189 \lambda^{8} - 10910 \lambda^{7} - 67110 \lambda^{6} - 296975 \lambda^{5} - 995820 \lambda^{4} - 2284604 \lambda^{3} - 3277032 \lambda^{2} - 2678144 \lambda - 972736\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda + 2\right) \left(\lambda^{2} + 4 \lambda + 8\right) \left(\lambda^{11} + 7 \lambda^{10} - 47 \lambda^{9} - 1189 \lambda^{8} - 10910 \lambda^{7} - 67110 \lambda^{6} - 296975 \lambda^{5} - 995820 \lambda^{4} - 2284604 \lambda^{3} - 3277032 \lambda^{2} - 2678144 \lambda - 972736\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 2 & 4 & 6 & 15 & 15 & 9 & 21 & 12 & 21 & 64 & 36 & 24 & 120 \\ 1 & -1 & 1 & 1 & 2 & 4 & -2 & 8 & 6 & 4 & 6 & 3 & 0 & 16 \\ 1 & 0 & -1 & 2 & 2 & 6 & 2 & 2 & 0 & 6 & 12 & 9 & 6 & 32 \\ 1 & 1 & 1 & -1 & 2 & 0 & 2 & 4 & 2 & 4 & 21 & 12 & 9 & 32 \\ 0 & 1 & 1 & 0 & -2 & 2 & -1 & 1 & 0 & 2 & 0 & 0 & 0 & 0 \\ 0 & 1 & 0 & 1 & 1 & -2 & 0 & 1 & 1 & 0 & 2 & 0 & -2 & 0 \\ 0 & 1 & 0 & 0 & 1 & 1 & 0 & 0 & 0 & 1 & 8 & 6 & 4 & 12 \\ 0 & 0 & 1 & 1 & 1 & 0 & 1 & -2 & -1 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 1 & 0 & 0 & 0 & 0 & 2 & 0 & 2 & 6 & 2 & 2 & 12 \\ 0 & 0 & 0 & 1 & 0 & 1 & 0 & 1 & 1 & -1 & 2 & 2 & 2 & 12 \\ 0 & 0 & 0 & 0 & 1 & \frac{7}{2} & \frac{1}{2} & 3 & \frac{1}{2} & \frac{11}{2} & 1 & 2 & 1 & 4 \\ 0 & 0 & 0 & 0 & 1 & -3 & -1 & 3 & 4 & -3 & 0 & -2 & 0 & 0 \\ 0 & 0 & 0 & 0 & 1 & \frac{3}{2} & \frac{5}{2} & -5 & -\frac{7}{2} & -\frac{5}{2} & 0 & -1 & -2 & 4 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \frac{9}{4} & \frac{5}{4} & \frac{3}{4} & 0\end{pmatrix}\notag\end{equation}$$