[x^4 - 11*x^2 + 9, \
 x^4 - x^3 + x^2 - x + 1, \
 x^4 - x^3 + 21*x^2 - 21*x + 101, \
 x^4 + x^3 - 6*x^2 - x + 1, \
 x^4 - x^3 - 23*x^2 + x + 86, \
 x^4 + x^3 + 11*x^2 - 69*x + 171, \
 x^4 + x^3 + 11*x^2 + 101*x + 171]