Data:K12a1084/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^{-4} -2 z^6 a^{-2} +4 z^6 a^{-4} -2 z^6 a^{-6} -7 z^4 a^{-2} +4 z^4 a^{-4} -7 z^4 a^{-6} +z^4 a^{-8} +z^4-5 z^2 a^{-2} -5 z^2 a^{-6} +3 z^2 a^{-8} +3 z^2-2 a^{-4} + a^{-8} +2}