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