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