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

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

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

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

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