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