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