Data:L10a50/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^{11}-a^{11} z^{-1} -z^3 a^9+2 z a^9+2 a^9 z^{-1} -3 z^3 a^7-2 z a^7-3 z^3 a^5-3 z a^5-a^5 z^{-1} -z^3 a^3}