witness: N = 16, type (Def. 2.1) A_1, end index j = 1
crossing parameters t_1..t_15: [0.05902, 0.1459, 0.21353, 0.2918, 0.36803, 0.43769, 0.52254, 0.58359, 0.66915, 0.68328, 0.75186, 0.78885, 0.83458, 0.89443, 0.91729]
t_i + t_(16-i), i=1..7 (would all be 1 for a centrally symmetric development): [0.97631, 1.04033, 1.0481, 1.08065, 1.1199, 1.12098, 1.1917] ; middle crossing t_8 = 0.58359 (would be 0.5)
values listed in the record for the first, eighth and last crossing: 0.05902, 0.58359, 0.91729
number of type-A_0 points with N = 16 and |B| <= 19: 18
