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