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