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 A015316 Gaussian binomial coefficient [ n,5 ] for q = -10. 4
 1, -90909, 9182728191, -917355454462809, 91744720010017447191, -9174380256281734701652809, 917438943076290926712489347191, -91743885133148835462057759420652809 (list; graph; refs; listen; history; text; internal format)
 OFFSET 5,2 REFERENCES 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. LINKS Vincenzo Librandi, Table of n, a(n) for n = 5..200 Index entries for linear recurrences with constant coefficients, signature (-90909,918281910,917272809000,-91828191000000,-909090000000000,1000000000000000). FORMULA G.f.: -x^5 / ( (x-1)*(10*x+1)*(1000*x+1)*(100*x-1)*(10000*x-1)*(100000*x+1) ). - R. J. Mathar, Aug 04 2016 MATHEMATICA Table[QBinomial[n, 5, -10], {n, 5, 20}] (* Vincenzo Librandi, Oct 29 2012 *) PROG (Sage) [gaussian_binomial(n, 5, -10) for n in range(5, 13)] # Zerinvary Lajos, May 27 2009 CROSSREFS Sequence in context: A179732 A131353 A183677 * A212853 A127660 A127659 Adjacent sequences: A015313 A015314 A015315 * A015317 A015318 A015319 KEYWORD sign,easy AUTHOR Olivier Gérard, Dec 11 1999 STATUS approved

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Last modified December 9 11:21 EST 2022. Contains 358700 sequences. (Running on oeis4.)