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

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

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

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

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