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