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