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

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

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

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

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