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

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

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

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

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