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