− M 20 + L 8 M 6 + L ( − 3 M 20 + M 18 + 4 M 16 − 4 M 14 + M 8 − M 6 ) + L 7 ( M 20 − M 18 + 4 M 12 − 4 M 10 − M 8 + 3 M 6 ) + L 3 ( − 4 M 22 + 4 M 20 + 5 M 18 + 9 M 16 − 10 M 14 − 13 M 12 + 12 M 10 + 7 M 8 − 2 M 6 − 3 M 4 + M 2 ) + L 2 ( − 2 M 22 − 6 M 20 + 13 M 18 + 9 M 16 − 7 M 14 − 12 M 12 + 5 M 10 + 5 M 8 − 4 M 6 + M 4 ) + L 6 ( − M 22 + 4 M 20 − 5 M 18 − 5 M 16 + 12 M 14 + 7 M 12 − 9 M 10 − 13 M 8 + 6 M 6 + 2 M 4 ) + L 5 ( − M 24 + 3 M 22 + 2 M 20 − 7 M 18 − 12 M 16 + 13 M 14 + 10 M 12 − 9 M 10 − 5 M 8 − 4 M 6 + 4 M 4 ) + L 4 ( M 26 − 7 M 24 + 7 M 22 + 13 M 20 − 6 M 18 − 18 M 16 − 15 M 14 + 15 M 12 + 18 M 10 + 6 M 8 − 13 M 6 − 7 M 4 + 7 M 2 − 1 ) {\displaystyle -M^{20}+L^{8}M^{6}+L\left(-3M^{20}+M^{18}+4M^{16}-4M^{14}+M^{8}-M^{6}\right)+L^{7}\left(M^{20}-M^{18}+4M^{12}-4M^{10}-M^{8}+3M^{6}\right)+L^{3}\left(-4M^{22}+4M^{20}+5M^{18}+9M^{16}-10M^{14}-13M^{12}+12M^{10}+7M^{8}-2M^{6}-3M^{4}+M^{2}\right)+L^{2}\left(-2M^{22}-6M^{20}+13M^{18}+9M^{16}-7M^{14}-12M^{12}+5M^{10}+5M^{8}-4M^{6}+M^{4}\right)+L^{6}\left(-M^{22}+4M^{20}-5M^{18}-5M^{16}+12M^{14}+7M^{12}-9M^{10}-13M^{8}+6M^{6}+2M^{4}\right)+L^{5}\left(-M^{24}+3M^{22}+2M^{20}-7M^{18}-12M^{16}+13M^{14}+10M^{12}-9M^{10}-5M^{8}-4M^{6}+4M^{4}\right)+L^{4}\left(M^{26}-7M^{24}+7M^{22}+13M^{20}-6M^{18}-18M^{16}-15M^{14}+15M^{12}+18M^{10}+6M^{8}-13M^{6}-7M^{4}+7M^{2}-1\right)}
