Data:L11a516/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^2 a^6-a^6+3 z^4 a^4+6 z^2 a^4+a^4 z^{-2} +3 a^4-2 z^6 a^2-6 z^4 a^2-7 z^2 a^2-2 a^2 z^{-2} -4 a^2-z^6-z^4+z^2+ z^{-2} +2+z^4 a^{-2} +z^2 a^{-2} }