Data:K11a2/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^6 a^{-4} -2 z^6 a^{-6} +z^4 a^{-2} -z^4 a^{-4} -6 z^4 a^{-6} +3 z^4 a^{-8} +2 z^2 a^{-2} +2 z^2 a^{-4} -7 z^2 a^{-6} +6 z^2 a^{-8} -z^2 a^{-10} }+ a^{-2} +2 a^{-4} -4 a^{-6} +3 a^{-8} - a^{-10} }}