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

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

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

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

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