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

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

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

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

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