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A015309 Gaussian binomial coefficient [ n,5 ] for q=-5. +0
2
1, -2604, 8476671, -26279294704, 82254445109046, -256962886520659704, 803060432690378496546, -2509531719872244898534704, 7842306707330337276457324671, -24507195908707737696414306347204 (list; graph; listen)
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.

PROGRAM

(Other) sage: [gaussian_binomial(n, 5, -5) for n in xrange(5, 15)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 27 2009]

CROSSREFS

Sequence in context: A031729 A001726 A109487 this_sequence A054258 A066871 A156398

Adjacent sequences: A015306 A015307 A015308 this_sequence A015310 A015311 A015312

KEYWORD

sign,easy

AUTHOR

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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