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