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A015327
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Gaussian binomial coefficient [ n,6 ] for q=-5.
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2
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1, 13021, 211929796, 3285123767796, 51412313316921546, 803060432690378496546, 12548622321219854387027796, 196069714237340352552410777796, 3063597127265150338968694860387171
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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6,2
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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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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 6..200
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MATHEMATICA
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Table[QBinomial[n, 6, -5], {n, 6, 20}] (* Vincenzo Librandi, Oct 29 2012 *)
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PROG
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(Sage) [gaussian_binomial(n, 6, -5) for n in xrange(6, 15)] # [From Zerinvary Lajos, May 27 2009]
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CROSSREFS
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Sequence in context: A203910 A138762 A139777 * A210016 A079230 A252638
Adjacent sequences: A015324 A015325 A015326 * A015328 A015329 A015330
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KEYWORD
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nonn,easy
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AUTHOR
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Olivier Gérard
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STATUS
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approved
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