Data:L11n365/HOMFLYPT Polynomial

$z 2 a 8 + a 8 z -2 + 2 a 8 -2 z 4 a 6 -6 z 2 a 6 -2 a 6 z -2 -6 a 6 + z 6 a 4 + 4 z 4 a 4 + 6 z 2 a 4 + a 4 z -2 + 3 a 4 - z 4 a 2 - z 2 a 2 + a 2$