Data:K11a130/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^8-2 z^4 a^6-3 z^2 a^6-a^6+z^6 a^4+z^4 a^4-z^2 a^4-2 a^4+z^6 a^2+2 z^4 a^2+3 z^2 a^2+3 a^2-z^4-z^2}