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