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