Data:L11a456/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^4 a^{-4} -a^4 z^2+2 z^2 a^{-4} + a^{-4} z^{-2} -a^4+2 a^{-4} -z^6 a^{-2} +2 a^2 z^4-3 z^4 a^{-2} +3 a^2 z^2-6 z^2 a^{-2} -2 a^{-2} z^{-2} +2 a^2-5 a^{-2} -z^6-z^4+z^2+ z^{-2} +2}