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

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

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

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

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