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

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

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

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

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