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