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