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