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%I A015380
%S A015380 1,119304647,16266970069380217,2179059787976052939572615,
%T A015380 292539874786707389459461268654713,
%U A015380 39262839136506665155883080645146897495431
%V A015380 1,-119304647,16266970069380217,-2179059787976052939572615,
%W A015380 292539874786707389459461268654713,
%X A015380 -39262839136506665155883080645146897495431
%N A015380 Gaussian binomial coefficient [ n,9 ] for q=-8.
%D A015380 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.
%D A015380 I. P. Goulden and D. M. Jackson, Combinatorial Enumeration. Wiley, NY, 
               1983, p, 99.
%D A015380 M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.
%o A015380 (Other) sage: [gaussian_binomial(n,9,-8) for n in xrange(9,15)] # [From 
               Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 25 2009]
%Y A015380 Sequence in context: A147581 A112018 A157770 this_sequence A038131 A081734 
               A058362
%Y A015380 Adjacent sequences: A015377 A015378 A015379 this_sequence A015381 A015382 
               A015383
%K A015380 sign,easy
%O A015380 9,2
%A A015380 Olivier Gerard (olivier.gerard(AT)gmail.com)

    
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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