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