Data:K12a1012/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^8+a^2 z^6-4 z^6 a^{-2} +z^6 a^{-4} -5 z^6+4 a^2 z^4-4 z^4 a^{-2} +3 z^4 a^{-4} -10 z^4+5 a^2 z^2+z^2 a^{-2} +2 z^2 a^{-4} -11 z^2+3 a^2+3 a^{-2} -5}