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