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

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

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

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

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