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