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