Data:10 49/HOMFLYPT Polynomial

$z^2 a^{12}+2 a^{12}-3 z^4 a^{10}-10 z^2 a^{10}-7 a^{10}+2 z^6 a^8+9 z^4 a^8+12 z^2 a^8+5 a^8+z^6 a^6+4 z^4 a^6+4 z^2 a^6+a^6$