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

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

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

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

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