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

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

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

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

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