Data:L11a141/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^9 a^{-1} -a z^7+6 z^7 a^{-1} -z^7 a^{-3} -4 a z^5+12 z^5 a^{-1} -4 z^5 a^{-3} -4 a z^3+7 z^3 a^{-1} -4 z^3 a^{-3} +a z-3 z a^{-1} +z a^{-3} +2 a z^{-1} -3 a^{-1} z^{-1} + a^{-3} z^{-1} }