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