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

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

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

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

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