Data:L11n344/HOMFLYPT Polynomial

$- z 4 a 6 -2 z 2 a 6 -2 a 6 + z 6 a 4 + 4 z 4 a 4 + 8 z 2 a 4 + a 4 z -2 + 7 a 4 -3 z 4 a 2 -9 z 2 a 2 -2 a 2 z -2 -9 a 2 + 2 z 2 + z -2 + 4$