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