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

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

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

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

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