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