[ x^4 - x^3 + 4*x^2 - 20*x + 23, \ x^4 - x^3 - 2*x^2 + 12*x - 1, \ x^4 - 2*x^3 + 4*x^2 - 3*x + 17, \ x^4 - x^3 - 7*x^2 + 11*x + 3, \ x^4 - x^3 + 33*x^2 + 96*x - 64, \ x^4 + 15*x^2 + 484, \ x^4 - 2*x^3 + 74*x^2 - 73*x + 1760, \ x^4 - x^3 - 431*x^2 + 1285*x + 5243 ]