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