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