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Search: id:A000516
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| A000516 |
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Number of equivalence classes of n X n matrices over {0,1} with rows and columns summing to 5, where equivalence is defined by row and column permutations. Isomorphism classes of bicolored 5-regular bipartite graphs, where isomorphism cannot exchange the colors. |
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+0 2
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| 0, 0, 0, 0, 1, 1, 4, 51, 3529, 601055, 156473848
(list; graph; listen)
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