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

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

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

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

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