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

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

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

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

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