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

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

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

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

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