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

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

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

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

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