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

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

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

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

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