q=0.2929 u=1.5537: quartic feasible for a in [0.5775, 0.8400] (106 grid points; contiguous: True)
q=0.2900 u=1.5647: quartic feasible for a in [0.5875, 0.8450] (104 grid points; contiguous: True)
q=0.2850 u=1.5839: quartic feasible for a in [0.6025, 0.8550] (102 grid points; contiguous: True)
q=0.2800 u=1.6036: quartic feasible for a in [0.6200, 0.8625] (98 grid points; contiguous: True)
q=0.2750 u=1.6237: quartic feasible for a in [0.6350, 0.8700] (95 grid points; contiguous: True)
q=0.2700 u=1.6443: quartic feasible for a in [0.6500, 0.8775] (92 grid points; contiguous: True)
q=0.2650 u=1.6654: quartic feasible for a in [0.6650, 0.8850] (89 grid points; contiguous: True)
q=0.2600 u=1.6871: quartic feasible for a in [0.6800, 0.8925] (86 grid points; contiguous: True)
q=0.2550 u=1.7093: quartic feasible for a in [0.6950, 0.9000] (83 grid points; contiguous: True)
q=0.2500 u=1.7321: quartic feasible for a in [0.7075, 0.9050] (80 grid points; contiguous: True)
