[ x^4 - x^3 + x^2 - x + 1, \
x^4 + 1, \
x^4 - 2*x^3 + 2, \
x^4 + x^2 - 1, \
x^4 + 3*x^2 + 1, \
x^4 + 2*x^2 + 2, \
x^4 + 2*x^2 - 1, \
x^4 + 4*x^2 + 5, \
x^4 - 6*x^2 + 4, \
x^4 + 2*x^2 - 4, \
x^4 + 6*x^2 + 4, \
x^4 - 5*x^2 + 5, \
x^4 - 5, \
x^4 - 4*x^2 + 2, \
x^4 + 2, \
x^4 + 4*x^2 + 2, \
x^4 - 2, \
x^4 + 2*x^2 + 10, \
x^4 + 6*x^2 + 10, \
x^4 + 4*x^2 + 9, \
x^4 - 4*x^2 + 9, \
x^4 + 25, \
x^4 - 20, \
x^4 + 10*x^2 + 20, \
x^4 - 10*x^2 + 20, \
x^4 - 2*x^3 + 4*x^2 + 2*x + 1, \
x^4 + 10*x^2 + 50, \
x^4 - 4*x^2 - 4*x - 3, \
x^4 + 10*x^2 - 25, \
x^4 + 2*x^2 - 9, \
x^4 + 6*x^2 - 1, \
x^4 + 5, \
x^4 - 50, \
x^4 - 20*x^2 + 50, \
x^4 + 20*x^2 + 50, \
x^4 + 50, \
x^4 - 4*x^2 - 16*x - 18, \
x^4 + 4*x^2 - 8*x + 2, \
x^4 - 10, \
x^4 - 20*x^2 + 10, \
x^4 - 20*x^2 + 90, \
x^4 + 20*x^2 + 10, \
x^4 + 20*x^2 + 90, \
x^4 - 40, \
x^4 + 40, \
x^4 + 10 ]