Data:K12a1067/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} -4 z^6 a^{-2} +3 z^6 a^{-4} +z^6-9 z^4 a^{-2} +8 z^4 a^{-4} -3 z^4 a^{-6} +2 z^4-10 z^2 a^{-2} +8 z^2 a^{-4} -5 z^2 a^{-6} +z^2 a^{-8} +3 z^2-4 a^{-2} +3 a^{-4} -2 a^{-6} + a^{-8} +3}