[ x^4 - x^3 - 6*x^2 + x + 1, \ x^4 - 2*x^3 + 2*x^2 - x - 4, \ x^4 + x^2 + 17, \ x^4 - x^3 - 6*x^2 - 67*x - 271, \ x^4 + 25*x^2 + 441, \ x^4 - 2*x^3 - 7*x^2 + 8*x + 1155, \ x^4 - x^3 + 283*x^2 + x + 19364 ]