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