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

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

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

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

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