Data:K11a283/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^8+a^8-3 z^4 a^6-6 z^2 a^6-3 a^6+2 z^6 a^4+6 z^4 a^4+7 z^2 a^4+2 a^4+z^6 a^2+z^4 a^2+a^2-z^4-z^2}