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