Data:K12a1088/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^8-2 a^2 z^6-2 z^6 a^{-2} +3 z^6+a^4 z^4-5 a^2 z^4-5 z^4 a^{-2} +z^4 a^{-4} +3 z^4+2 a^4 z^2-4 a^2 z^2-4 z^2 a^{-2} +2 z^2 a^{-4} +z^2+a^4-a^2- a^{-2} + a^{-4} +1}