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

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

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

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

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