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

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

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

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

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