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