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