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