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

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

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

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

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