Characteristic polynomial
$$\begin{equation}\lambda \left(\lambda^{13} + 2 \lambda^{12} - 50 \lambda^{11} - 325 \lambda^{10} - 255 \lambda^{9} - 2097 \lambda^{8} + 19746 \lambda^{7} - 21041 \lambda^{6} - 7274 \lambda^{5} - 414640 \lambda^{4} + 1490075 \lambda^{3} - 1961523 \lambda^{2} + 1038741 \lambda - 439624\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\lambda \left(\lambda^{13} + 2 \lambda^{12} - 50 \lambda^{11} - 325 \lambda^{10} - 255 \lambda^{9} - 2097 \lambda^{8} + 19746 \lambda^{7} - 21041 \lambda^{6} - 7274 \lambda^{5} - 414640 \lambda^{4} + 1490075 \lambda^{3} - 1961523 \lambda^{2} + 1038741 \lambda - 439624\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 2 & 2 & 4 & 6 & 6 & 6 & 3 & 6 & 0 & 0 & 8 & 4 & 10 \\ 1 & 0 & 0 & 0 & 2 & 2 & 2 & 2 & 6 & 2 & -3 & -9 & -6 & 8 \\ 1 & 0 & -1 & 0 & 2 & 4 & 4 & 2 & 4 & 0 & 0 & 0 & 0 & 8 \\ 1 & 0 & 1 & 0 & 0 & 0 & -2 & -2 & -2 & 2 & 6 & 15 & 6 & -8 \\ 0 & 1 & 0 & 0 & -1 & 0 & 0 & 0 & 0 & 1 & 2 & -2 & 0 & 0 \\ 0 & 1 & 0 & 2 & 1 & 0 & -1 & 1 & 1 & -1 & -2 & -2 & -2 & 0 \\ 0 & 1 & 0 & 0 & 0 & 0 & 1 & 0 & 0 & 1 & 2 & 6 & 4 & 0 \\ 0 & 0 & 1 & 0 & 0 & 0 & 0 & 0 & 0 & 1 & 2 & 4 & 0 & 0 \\ 0 & 0 & 2 & 1 & 0 & 0 & 0 & -1 & -1 & -1 & 0 & 4 & 2 & 0 \\ 0 & 0 & 0 & 1 & 0 & 0 & 1 & 1 & 1 & 1 & 0 & 0 & 0 & 6 \\ 0 & 0 & 0 & 0 & 1 & -\frac{4}{3} & \frac{1}{3} & \frac{10}{3} & \frac{5}{3} & -\frac{8}{3} & -\frac{4}{3} & -\frac{4}{3} & -\frac{4}{3} & 4 \\ 0 & 0 & 0 & 0 & 2 & \frac{11}{3} & \frac{7}{3} & -\frac{2}{3} & \frac{5}{3} & \frac{4}{3} & \frac{2}{3} & \frac{2}{3} & \frac{2}{3} & 0 \\ 0 & 0 & 0 & 0 & 0 & -\frac{4}{3} & -\frac{8}{3} & \frac{4}{3} & \frac{8}{3} & \frac{7}{3} & -\frac{1}{3} & -\frac{1}{3} & -\frac{1}{3} & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 2 & 6 & \frac{5}{2} & 0\end{pmatrix}\notag\end{equation}$$