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