Data:L11a320/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^5 a^7+3 z^3 a^7+3 z a^7-z^7 a^5-4 z^5 a^5-6 z^3 a^5-3 z a^5+a^5 z^{-1} -z^7 a^3-4 z^5 a^3-6 z^3 a^3-4 z a^3-a^3 z^{-1} +z^5 a+3 z^3 a+2 z a}