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