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

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

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

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

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