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

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

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

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

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