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

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

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

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

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