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

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

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

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

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