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

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

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

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

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