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