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

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

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

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

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