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