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

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

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

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

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