Data:L11a27/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^{11} z^{-1} +4 z a^9+3 a^9 z^{-1} -5 z^3 a^7-7 z a^7-3 a^7 z^{-1} +2 z^5 a^5+3 z^3 a^5+3 z a^5+2 a^5 z^{-1} +z^5 a^3-z a^3-a^3 z^{-1} -z^3 a-z a}