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

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

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

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

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