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