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

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

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

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

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