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

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

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

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

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