PASS: 50 exact checks, with certified quadratic series tails.
Outside-cone vacuum: [(0, (1, 0)), (4, (1, 0)), (8, (1, 0)), (12, (2, 0)), (16, (3, 0)), (20, (4, 0)), (24, (6, 0)), (28, (8, 0)), (32, (11, 0)), (36, (14, 0)), (40, (19, 0)), (44, (24, 0)), (48, (32, 0))]
Meridian unit equals longitude square: [(8, (-1, 0)), (16, (1, 0)), (20, (2, 0)), (24, (2, 0)), (28, (1, 0)), (36, (-3, 0)), (40, (-4, 0)), (44, (-6, 0)), (48, (-6, 0))]
