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