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