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

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

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

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

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