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

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

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

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

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