Data:10 37/HOMFLYPT Polynomial

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