Data:K12a1107/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^4 z^8+a^2 z^8-a^6 z^6+5 a^4 z^6+5 a^2 z^6-z^6-4 a^6 z^4+8 a^4 z^4+8 a^2 z^4-4 z^4-4 a^6 z^2+6 a^4 z^2+6 a^2 z^2-4 z^2-2 a^6+2 a^4+2 a^2-1}