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

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

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

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

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