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

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

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

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

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