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