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A015294
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Gaussian binomial coefficient [ n,4 ] for q=-8.
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2
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1, 3641, 15150201, 61934287481, 253744775809657, 1039306892330748537, 4257017266254230145657, 17436734410124346225937017, 71420868399845502303592335993, 292539874786707389459461268654713
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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4,2
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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 = 4..200
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MATHEMATICA
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Table[QBinomial[n, 4, -8], {n, 4, 20}] (* Vincenzo Librandi, Oct 28 2012 *)
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PROG
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(Sage) [gaussian_binomial(n, 4, -8) for n in xrange(4, 14)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 27 2009]
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CROSSREFS
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Sequence in context: A206836 A206898 A207288 * A186870 A185613 A212852
Adjacent sequences: A015291 A015292 A015293 * A015295 A015296 A015297
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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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