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