Data:L9a27/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 a^{-5} -2 z^3 a^{-3} +a^3 z-2 z a^{-3} - a^{-3} z^{-1} +z^5 a^{-1} -2 a z^3+2 z^3 a^{-1} -2 a z+3 z a^{-1} + a^{-1} z^{-1} }