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