Data:L11n204/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^3 a^{13}-3 z a^{13}-a^{13} z^{-1} +z^7 a^{11}+8 z^5 a^{11}+20 z^3 a^{11}+17 z a^{11}+3 a^{11} z^{-1} -z^9 a^9-9 z^7 a^9-28 z^5 a^9-36 z^3 a^9-18 z a^9-2 a^9 z^{-1} }