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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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5
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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; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| 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
| Cf. A002620, A058389, A058391, A058392, A001496, A052280, A052281.
Sequence in context: A069632 A069617 A173879 * A198963 A069592 A065534
Adjacent sequences: A058387 A058388 A058389 * A058391 A058392 A058393
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KEYWORD
| nonn
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AUTHOR
| Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 24 2000
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