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