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

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

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

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

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