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