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

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

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

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

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