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

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

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

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

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