Data:L11a547/HOMFLYPT Polynomial

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -z a^{13}+a^{13} z^{-3} +3 z^3 a^{11}+z a^{11}-5 a^{11} z^{-1} -3 a^{11} z^{-3} -2 z^5 a^9+z^3 a^9+11 z a^9+10 a^9 z^{-1} +3 a^9 z^{-3} -4 z^5 a^7-11 z^3 a^7-11 z a^7-5 a^7 z^{-1} -a^7 z^{-3} -z^5 a^5-z^3 a^5}