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