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