Data:L6a1/Kauffman Polynomial

$- z 3 a 5 + 2 z a 5 - a 5 z -1 - z 4 a 4 + a 4 - z 5 a 3 + z a 3 - a 3 z -1 -3 z 4 a 2 + 3 z 2 a 2 - z 5 a -2 z 4 + 3 z 2 - z 3 a -1 + z a -1$