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