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