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

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

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

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

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