Data:L11a261/HOMFLYPT Polynomial

$a^3 z^7+a z^7-a^5 z^5+4 a^3 z^5+3 a z^5-z^5 a^{-1} -3 a^5 z^3+7 a^3 z^3+2 a z^3-2 z^3 a^{-1} -3 a^5 z+6 a^3 z-2 a z-z a^{-1} -a^5 z^{-1} +3 a^3 z^{-1} -2 a z^{-1}$