[ x^4 - x^2 + 1, \
x^4 + 1, \
x^4 - 3*x^2 + 3, \
x^4 + 2*x^2 + 2, \
x^4 + 2*x^2 + 4, \
x^4 - 2*x^2 + 4, \
x^4 + 2*x^2 - 1, \
x^4 - 2*x^3 - 2*x + 1, \
x^4 - 6*x^2 + 12, \
x^4 - 2, \
x^4 - 4*x^2 + 2, \
x^4 + 4*x^2 + 2, \
x^4 + 2, \
x^4 + 4*x^2 + 1, \
x^4 + 9, \
x^4 - 4*x^2 + 1, \
x^4 + 2*x^2 + 3, \
x^4 - 2*x^2 + 3, \
x^4 - 2*x^3 - 6*x + 3, \
x^4 + 6*x^2 + 18, \
x^4 + 2*x^2 - 2, \
x^4 - 2*x^2 - 2, \
x^4 - 2*x^3 + 6*x^2 - 4*x + 2, \
x^4 - 2*x^3 + 3*x^2 + 2*x - 1, \
x^4 + 4*x^2 + 6, \
x^4 - 4*x^2 + 6, \
x^4 - 3, \
x^4 - 4*x - 6, \
x^4 + 3*x^2 - 2*x + 6, \
x^4 + 6*x^2 - 9, \
x^4 + 6*x^2 + 6, \
x^4 - 6*x^2 + 6, \
x^4 - 4*x - 3, \
x^4 - 2*x^3 - 3*x^2 - 2*x + 7, \
x^4 - 2*x^3 - 4*x + 2, \
x^4 + 4*x^2 - 2, \
x^4 + 18, \
x^4 - 4*x^2 - 2, \
x^4 + 12*x^2 + 18, \
x^4 - 12*x^2 + 18, \
x^4 - 18, \
x^4 + 6*x^2 + 3, \
x^4 - 6*x^2 + 3, \
x^4 - 6*x^2 - 8*x + 6, \
x^4 + 6, \
x^4 - 6, \
x^4 - 8*x + 6, \
x^4 - 24, \
x^4 + 24, \
x^4 - 12*x^2 - 16*x + 12, \
x^4 - 6*x^2 - 4*x + 15, \
x^4 - 6*x^2 - 4*x + 6, \
x^4 - 16*x - 24, \
x^4 - 6*x^2 - 8*x + 15, \
x^4 + 12*x^2 - 4*x + 69, \
x^4 + 12*x^2 - 16*x + 24, \
x^4 - 8*x - 6, \
x^4 - 12*x^2 - 8*x + 18, \
x^4 + 12*x^2 - 16*x + 6, \
x^4 - 24*x^2 - 56*x - 30, \
x^4 + 12*x^2 - 16*x + 60, \
x^4 + 12*x^2 - 8*x + 42 ]