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

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

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

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

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