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