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

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

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

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

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