Data:L11n140/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 -a^9 z^{-1} -z^3 a^7+2 a^7 z^{-1} +z^5 a^5+3 z^3 a^5+3 z a^5-2 z^3 a^3-4 z a^3-a^3 z^{-1} }