Data:L11n419/HOMFLYPT Polynomial

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[math]\displaystyle{ -2 z^4 a^{-2} -7 z^2 a^{-2} +3 z^2 a^{-4} +2 z^2-8 a^{-2} +5 a^{-4} - a^{-6} +4-2 a^{-2} z^{-2} + a^{-4} z^{-2} + z^{-2} }[/math]