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

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

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

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

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