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

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

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

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

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