Data:L11a401/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^6 z^4-a^6 z^2+2 a^4 z^6+5 a^4 z^4+3 a^4 z^2+a^4 z^{-2} -a^2 z^8-4 a^2 z^6-6 a^2 z^4-3 a^2 z^2-2 a^2 z^{-2} -a^2+z^6+2 z^4+z^2+ z^{-2} +1}