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