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

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

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

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

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