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