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

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

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

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

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