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