(0 20 18)(1 13 2 21 4)(3 7 5)(6 17 14 10 8)(9 12 11)(15 19 16)
ALLOWS (11/8)-SEQUENCE
1: (0 3 7)
(0 5 3 20 18)(1 13 2 21 4)(6 17 14 10 8)(7)(9 12 11)(15 19 16)
2: (1 13 4)
(0 5 3 20 18)(1)(2 21 4)(6 17 14 10 8)(7)(9 12 11)(13)(15 19 16)
3: (6 17 8)
(0 5 3 20 18)(1)(2 21 4)(6)(7)(8 14 10)(9 12 11)(13)(15 19 16)(17)
4: (0 5 3)
(0 20 18)(1)(2 21 4)(3)(5)(6)(7)(8 14 10)(9 12 11)(13)(15 19 16)(17)