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