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