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