M 20 + L 5 M 2 + L 4 ( − M 14 + 4 M 12 − 8 M 10 + M 8 + 13 M 6 − 2 M 4 − 2 M 2 ) + L ( − 2 M 20 − 2 M 18 + 13 M 16 + M 14 − 8 M 12 + 4 M 10 − M 8 ) + L 3 ( − M 20 + 7 M 18 − 10 M 16 − 6 M 14 + 4 M 12 + 9 M 10 + 25 M 8 − 13 M 6 − 11 M 4 + 7 M 2 − 1 ) + L 2 ( − M 22 + 7 M 20 − 11 M 18 − 13 M 16 + 25 M 14 + 9 M 12 + 4 M 10 − 6 M 8 − 10 M 6 + 7 M 4 − M 2 ) {\displaystyle M^{20}+L^{5}M^{2}+L^{4}\left(-M^{14}+4M^{12}-8M^{10}+M^{8}+13M^{6}-2M^{4}-2M^{2}\right)+L\left(-2M^{20}-2M^{18}+13M^{16}+M^{14}-8M^{12}+4M^{10}-M^{8}\right)+L^{3}\left(-M^{20}+7M^{18}-10M^{16}-6M^{14}+4M^{12}+9M^{10}+25M^{8}-13M^{6}-11M^{4}+7M^{2}-1\right)+L^{2}\left(-M^{22}+7M^{20}-11M^{18}-13M^{16}+25M^{14}+9M^{12}+4M^{10}-6M^{8}-10M^{6}+7M^{4}-M^{2}\right)}