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

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

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

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

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