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

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

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

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

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