Data:K12n802/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 z^6-z^6}{a^2}+ $Failed^{-1} +5 z^6-2 a^2 z^4-3 z^4}{a^2}+ $Failed^{-1} +9 z^4-a^4 z^2-3 z^2}{a^2}+ $Failed^{-1} +6 z^2-a^4+a^2-1}{a^2}+ $Failed^{-1} +2}