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