Data:L11n221/HOMFLYPT Polynomial
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[math]\displaystyle{ -2 a z^5-z^5 a^{-1} +2 a^3 z^3-6 a z^3-z^3 a^{-1} +z^3 a^{-3} +3 a^3 z-7 a z+z a^{-1} +z a^{-3} +2 a^3 z^{-1} -3 a z^{-1} + a^{-1} z^{-1} }[/math]