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Search: id:A003439
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| A003439 |
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Number of 6 X 6 stochastic matrices of integers.
(Formerly M5474)
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+0
2
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| 1, 720, 202410, 20933840, 1047649905, 30767936616, 602351808741, 8575979362560, 94459713879600, 842286559093240, 6292583664553881, 40447642842118656, 228438173705550566, 1152877640765297760
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Matthias Beck and Dennis Pixton, The Ehrhart Polynomial of the Birkhoff Polytope, Discrete & Computational Geometry, 30(4)(2003), 623-637.
D. M. Jackson and G. H. J. van Rees, The enumeration of generalized double stochastic nonnegative integer square matrices, SIAM J. Comput., 4 (1975), 474-477.
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LINKS
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Dennis Pixton, Ehrhart polynomials for n =1, ..., 9
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CROSSREFS
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Sequence in context: A047803 A166765 A008411 this_sequence A145093 A054779 A030185
Adjacent sequences: A003436 A003437 A003438 this_sequence A003440 A003441 A003442
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Melissa Erdmann (merdmann(AT)nebrwesleyan.edu), May 07 2009.
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