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

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

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

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

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