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Search: id:A138352
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| A138352 |
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Table read by antidiagonals: T(n,k) is the number of transitive directed multigraphs with loops with n arcs and k vertices. |
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3
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| 1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 2, 5, 1, 0, 1, 2, 8, 8, 1, 0, 1, 2, 9, 20, 14, 1, 0, 1, 2, 9, 29
(list; table; graph; listen)
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OFFSET
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0,8
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COMMENT
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Partial sums of the rows of A139623, i.e., T(n,k) = sum(T139623(n,p),p=0..k).
If k>=2n, T(n,k) = A139628(n).
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CROSSREFS
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Cf. A138107.
Sequence in context: A145895 A114503 A103528 this_sequence A129620 A074766 A138107
Adjacent sequences: A138349 A138350 A138351 this_sequence A138353 A138354 A138355
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KEYWORD
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nonn,tabl
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AUTHOR
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Benoit Jubin (benoit_jubin(AT)yahoo.fr), May 07 2008
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