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Search: id:A015272
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| A015272 |
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Gaussian binomial coefficient [ n,3 ] for q=-5. |
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+0
1
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| 1, -104, 13546, -1679704, 210302171, -26279294704, 3285123767796, -410635172794704, 51329529054158421, -6416187820400919704, 802023560334345174046, -100252942972187432169704
(list; graph; listen)
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OFFSET
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3,2
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REFERENCES
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J. Goldman and G.-C. Rota, The number of subspaces of a vector space, pp. 75-83 of W. T. Tutte, editor, Recent Progress in Combinatorics. Academic Press, NY, 1969.
I. P. Goulden and D. M. Jackson, Combinatorial Enumeration. Wiley, NY, 1983, p, 99.
M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.
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PROGRAM
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(Other) sage: [gaussian_binomial(n, 3, -5) for n in xrange(3, 15)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 27 2009]
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CROSSREFS
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Sequence in context: A035811 A004393 A164759 this_sequence A048920 A091539 A157874
Adjacent sequences: A015269 A015270 A015271 this_sequence A015273 A015274 A015275
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KEYWORD
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sign,easy
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AUTHOR
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Olivier Gerard (olivier.gerard(AT)gmail.com)
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