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

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

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

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

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