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