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Search: id:A058390
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| A058390 |
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Number of 4 X 4 matrices with nonnegative integer entries and all row sums equal to n, up to row and column permutation. |
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+0
6
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| 1, 5, 53, 458, 3411, 19865, 95214, 383714, 1346183, 4202086, 11905966, 31061806, 75533056, 172800689, 374861365, 775978710, 1541027694, 2949003213, 5458806804, 9805626744, 17140511056
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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Vladeta Jovovic, Number of m x m nonnegative integer matrices with all row sums equal to n, up to row and column permutation.
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CROSSREFS
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Cf. A002620, A058389, A058391, A058392, A001496, A052280, A052281.
Sequence in context: A068170 A069632 A069617 this_sequence A069592 A065534 A123788
Adjacent sequences: A058387 A058388 A058389 this_sequence A058391 A058392 A058393
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KEYWORD
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nonn
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AUTHOR
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Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 24 2000
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