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

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

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

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

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