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

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

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

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

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