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