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

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

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

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

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