[ Eq(Derivative(x1, t), ((-1)*k2*x1 + (-1)*k3*x1 + (-1)*k4*x1)/k1),
  Eq(Derivative(x2, t), (1*k2*x1 + (-1)*k5*x2 + (-1)*k11*x2 + (-1)*k12*x2)/k1),
  Eq(Derivative(x3, t), (1*k3*x1 + (-1)*k8*x3 + (-1)*k17*x3)/k1),
  Eq(Derivative(x4, t), (1*k4*x1 + 1*k6*x6 + 1*k9*x8 + (-1)*k15*x4*x5 + (-1)*k16*x4)/k1),
  Eq(Derivative(x5, t), (1*k4*x1 + 1*k5*x2 + 1*k8*x3 + 1*k11*x2 + 1*k12*x2 + (-1)*k15*x4*x5 + 1*k17*x3)/k1),
  Eq(Derivative(x6, t), (1*k5*x2 + (-1)*k6*x6 + (-1)*k7*x6 + 1*k14*x11)/k1),
  Eq(Derivative(x7, t), (1*k7*x6 + 1*k16*x4)/k1),
  Eq(Derivative(x8, t), (1*k8*x3 + (-1)*k9*x8 + (-1)*k10*x8)/k1),
  Eq(Derivative(x9, t), (1*k10*x8 + 1*k16*x4)/k1),
  Eq(Derivative(x10, t), (1*k11*x2 + (-1)*k13*x10)/k1),
  Eq(Derivative(x11, t), (1*k12*x2 + 1*k13*x10 + (-1)*k14*x11)/k1),
  Eq(Derivative(x12, t), 1*k16*x4/k1),
  Eq(Derivative(x13, t), 1*k15*x4*x5/k1),
  Eq(Derivative(x14, t), 1*k17*x3/k1) ]