Data:10 148/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^4 a^6-3 z^2 a^6-3 a^6+z^6 a^4+5 z^4 a^4+9 z^2 a^4+5 a^4-z^4 a^2-2 z^2 a^2-a^2}