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

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

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

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

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