(0 18 6)(1 15 2)(3 8 5)(4 20 17)(7 11 9)(10 14 12)(13 19 16)
ALLOWS (11/8)-SEQUENCE
1: (4 17 20)
(0 18 6)(1 15 2)(3 8 5)(4 17 20)(7 11 9)(10 14 12)(13 19 16)
2: (0 18 6)
(0)(1 15 2)(3 8 5)(4 17 20)(6)(7 11 9)(10 14 12)(13 19 16)(18)
3: (4 17 20)
(0)(1 15 2)(3 8 5)(4)(6)(7 11 9)(10 14 12)(13 19 16)(17)(18)(20)
4: (3 8 5)
(0)(1 15 2)(3)(4)(5)(6)(7 11 9)(8)(10 14 12)(13 19 16)(17)(18)(20)