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