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

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

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

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

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