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