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