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

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

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

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

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