Data:K12a1111/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 -a^2 z^8-z^8+a^4 z^6-4 a^2 z^6+z^6 a^{-2} -3 z^6+3 a^4 z^4-6 a^2 z^4+2 z^4 a^{-2} +2 a^4 z^2-6 a^2 z^2-z^2 a^{-2} +5 z^2+a^4-3 a^2- a^{-2} +4}