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A125699
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Table, T(n,k) is the number of connected categories with n morphisms and k objects.
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4
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1, 2, 7, 1, 35, 6, 228, 28, 2, 2237, 159, 11, 31559, 1075, 77, 3, 1668997, 9389, 497, 24
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OFFSET
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1,2
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COMMENTS
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Connected in the sense that if the morphism direction and composition is ignored, resulting in a multigraph, that multigraph is connected.
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LINKS
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Eric Weisstein's World of Mathematics, Category
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EXAMPLE
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The table starts:
1;
2;
7, 1;
35, 6;
228, 28, 2;
2237, 159, 11;
31559, 1075, 77, 3;
1668997, 9389, 497, 24;
...
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CROSSREFS
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KEYWORD
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tabf,hard,more,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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