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

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

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

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

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