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