3 label [0, 0, -1, 0] covers 1299 | regular in exact arithmetic: 6 of 6
6 label [0, 0, -2, 0] covers 1272 | regular in exact arithmetic: 7 of 7
7 label [0, 0, -2, 0] covers 1297 | regular in exact arithmetic: 7 of 7
20 label [0, 0, -1, 0] covers 1299 | regular in exact arithmetic: 6 of 6
39 label [0, 0, 0, -1] covers 1298 | regular in exact arithmetic: 5 of 5
42 label [0, 0, -1, 0] covers 1299 | regular in exact arithmetic: 6 of 6
