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

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

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

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

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