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

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

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

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

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