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