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

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

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

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

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