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例子
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具有跨越边缘连接性2的所有集合系统的序列及其BII编号开始于:
52:{{1,2},{1,3},{2,3}}
53: {{1},{1,2},{1,3},{2,3}}
54: {{2},{1,2},{1,3},{2,3}}
55: {{1},{2},{1,2},{1,3},{2,3}}
60: {{1,2},{3},{1,3},{2,3}}
61: {{1},{1,2},{3},{1,3},{2,3}}
62: {{2},{1,2},{3},{1,3},{2,3}}
63: {{1},{2},{1,2},{3},{1,3},{2,3}}
84: {{1,2},{1,3},{1,2,3}}
85: {{1},{1,2},{1,3},{1,2,3}}
86: {{2},{1,2},{1,3},{1,2,3}}
87: {{1},{2},{1,2},{1,3},{1,2,3}}
92: {{1,2},{3},{1,3},{1,2,3}}
93: {{1},{1,2},{3},{1,3},{1,2,3}}
94: {{2},{1,2},{3},{1,3},{1,2,3}}
95: {{1},{2},{1,2},{3},{1,3},{1,2,3}}
100:{{1,2},{2,3},{1,2,3}}
101: {{1},{1,2},{2,3},{1,2,3}}
102: {{2},{1,2},{2,3},{1,2,3}}
103: {{1},{2},{1,2},{2,3},{1,2,3}}
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