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

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

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

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

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