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

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

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

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

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