Data:K11n102/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^8-z^2 a^6-a^6-z^4 a^2-3 z^2 a^2-a^2+z^2+2}