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

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

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

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

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