Data:L9a29/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^7-4 z^3 a^7-4 z a^7-a^7 z^{-1} +z^7 a^5+6 z^5 a^5+12 z^3 a^5+10 z a^5+3 a^5 z^{-1} -z^5 a^3-5 z^3 a^3-7 z a^3-2 a^3 z^{-1} }