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

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

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

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

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