Data:L11a420/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^8 a^{-2} -6 z^6 a^{-2} +z^6 a^{-4} +2 z^6-a^2 z^4-15 z^4 a^{-2} +4 z^4 a^{-4} +10 z^4-4 a^2 z^2-21 z^2 a^{-2} +6 z^2 a^{-4} +18 z^2-4 a^2-16 a^{-2} +5 a^{-4} +15-a^2 z^{-2} -5 a^{-2} z^{-2} +2 a^{-4} z^{-2} +4 z^{-2} }