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

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

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

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

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