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