− q 14 + 3 q 13 − 4 q 12 + 5 q 11 − 6 q 10 + 4 q 9 − 4 q 8 + 2 q 7 + q 6 + q 4 {\displaystyle -q^{14}+3q^{13}-4q^{12}+5q^{11}-6q^{10}+4q^{9}-4q^{8}+2q^{7}+q^{6}+q^{4}}
