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