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

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

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

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

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