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

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

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

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

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