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