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