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