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