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

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

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

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

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