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