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