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

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

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

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

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