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