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