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