(0 9 1)(2 18 13 11 8)(3 20 17 14 12)(4 21 6)(5 10 7)(15 19 16)
ALLOWS (11/8)-SEQUENCE
1: (0 2 18)
(0 13 11 8 2 9 1)(3 20 17 14 12)(4 21 6)(5 10 7)(15 19 16)(18)
2: (1 2 9)
(0 13 11 8 2)(1)(3 20 17 14 12)(4 21 6)(5 10 7)(9)(15 19 16)(18)
3: (3 20 17)
(0 13 11 8 2)(1)(3 14 12)(4 21 6)(5 10 7)(9)(15 19 16)(17)(18)(20)
4: (2 11 8)
(0 13 11)(1)(2)(3 14 12)(4 21 6)(5 10 7)(8)(9)(15 19 16)(17)(18)(20)