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