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