a(1)=1到a(5)=14个多集分区的非同构代表:
{{1}} {{1,1}} {{1,1,1}} {{1,1,1,1}} {{1,1,1,1,1}}
{{1},{2}} {{1},{2,2}} {{1,1},{2,2}} {{1,1},{1,2,2}}
{{2},{1,2}} {{1},{2,2,2}} {{1,1},{2,2,2}}
{{1},{2},{3}} {{2},{1,2,2}} {{1,2},{1,2,2}}
{{1},{2},{3,3}} {{1},{2,2,2,2}}
{{1},{3},{2,3}} {{2},{1,2,2,2}}
{{1},{2},{3},{4}} {{1},{2,2},{3,3}}
{{1},{2},{3,3,3}}
{{1},{3},{2,3,3}}
{{2},{1,2},{3,3}}
{{2},{1,3},{2,3}}
{{1},{2},{3},{4,4}}
{{1},{2},{4},{3,4}}
{{1},{2},{3},{4},{5}}