Characteristic polynomial
$$\begin{equation}\left(\lambda - 2\right)^{2} \left(\lambda^{2} + 5 \lambda + 13\right)^{2} \left(\lambda^{10} + 6 \lambda^{9} - 34 \lambda^{8} - 411 \lambda^{7} - 2070 \lambda^{6} - 9722 \lambda^{5} - 56042 \lambda^{4} - 297227 \lambda^{3} - 972480 \lambda^{2} - 1730295 \lambda - 1322363\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda - 2\right) \left(\lambda^{2} + 5 \lambda + 13\right) \left(\lambda^{10} + 6 \lambda^{9} - 34 \lambda^{8} - 411 \lambda^{7} - 2070 \lambda^{6} - 9722 \lambda^{5} - 56042 \lambda^{4} - 297227 \lambda^{3} - 972480 \lambda^{2} - 1730295 \lambda - 1322363\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 2 & 2 & 0 & 4 & 3 & 0 & 3 & 0 & 3 & 3 & 0 & 4 & 4 & 4 & 5 \\ 1 & -1 & 0 & 0 & 1 & 2 & 0 & 2 & 0 & 0 & 0 & 0 & 3 & 3 & 0 & 4 \\ 1 & 0 & -1 & 0 & 1 & 2 & 0 & 2 & 0 & 0 & 0 & 0 & 0 & 0 & 3 & 4 \\ 2 & 0 & 0 & 0 & 1 & 0 & 2 & 2 & 2 & 4 & -2 & 3 & 3 & 0 & 3 & 0 \\ 1 & 1 & 1 & 0 & -1 & 0 & 0 & 0 & 0 & 0 & 2 & 0 & 0 & 0 & 0 & 0 \\ 0 & 1 & 1 & 0 & 0 & -2 & 0 & 1 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 3 \\ 0 & 2 & -1 & 1 & -2 & -1 & -1 & 0 & 0 & 1 & 0 & 2 & 2 & -2 & 2 & 0 \\ 0 & 1 & 1 & 0 & 3 & 2 & 0 & -1 & 0 & 0 & 0 & 0 & 0 & 2 & 0 & 0 \\ 0 & 0 & 3 & 1 & 1 & 1 & 0 & 0 & -1 & 1 & 0 & 2 & 2 & 0 & 2 & 0 \\ 0 & 0 & 0 & 1 & 3 & 0 & 1 & 1 & 1 & -1 & 0 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 2 & 0 & 0 & 0 & 0 & 0 & 1 & 0 & 0 & 2 & 2 & 2 & 3 \\ 0 & 0 & 0 & 0 & 0 & 3 & 1 & 1 & 1 & -3 & -1 & -2 & 0 & -1 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 1 & 3 & -2 & 2 & -1 & 1 & -1 & 0 & 0 & -2 \\ 0 & 0 & 0 & 0 & 0 & 0 & 2 & 0 & 2 & 2 & 3 & 0 & 1 & 0 & 1 & 4 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 3 & 4 & 2 & 1 & 1 & 1 & 0 & 2 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 3 & 4 & 2 & 4 & 0\end{pmatrix}\notag\end{equation}$$