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

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

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

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

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