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