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