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