Data:L11n89/HOMFLYPT Polynomial

$a 9 z -1 -4 z a 7 -3 a 7 z -1 + z 5 a 5 + 6 z 3 a 5 + 8 z a 5 + 4 a 5 z -1 - z 7 a 3 -5 z 5 a 3 -7 z 3 a 3 -6 z a 3 -2 a 3 z -1 + z 5 a + 3 z 3 a$