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