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A015353 Gaussian binomial coefficient [ n,7 ] for q = -11. 2
1, -17863240, 351004879413684, -6834956902420811530200, 133203071884610819994409432410, -2595734922068255016665440444288632600, 50583558850117484638411502782868591609069220 (list; graph; refs; listen; history; text; internal format)
OFFSET

7,2

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 = 7..140

MATHEMATICA

Table[QBinomial[n, 7, -11], {n, 7, 16}] (* Vincenzo Librandi, Nov 02 2012 *)

PROG

(Sage) [gaussian_binomial(n, 7, -11) for n in xrange(7, 14)] # Zerinvary Lajos, May 27 2009

(MAGMA) r:=7; q:=-11; [&*[(1-q^(n-i+1))/(1-q^i): i in [1..r]]: n in [r..15]]; // Vincenzo Librandi, Nov 02 2012

CROSSREFS

Sequence in context: A250981 A159192 A154875 * A083619 A257550 A282670

Adjacent sequences:  A015350 A015351 A015352 * A015354 A015355 A015356

KEYWORD

sign,easy

AUTHOR

Olivier Gérard, Dec 11 1999

STATUS

approved

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Last modified March 22 01:06 EDT 2019. Contains 321406 sequences. (Running on oeis4.)