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

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

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

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

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