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