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

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

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

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

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