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