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