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Search: id:A022220
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| A022220 |
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Gaussian binomial coefficients [ n,2 ] for q = 6. |
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+0
1
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| 1, 43, 1591, 57535, 2072815, 74630671, 2686760143, 96723701071, 3482055254095, 125354001240655, 4512744117222991, 162458788655384143, 5848516394205967951, 210546590207087679055, 7579677247549193442895
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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G.f.: 1/[(1-x)(1-6x)(1-36x)].
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PROGRAM
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(Other) sage: [gaussian_binomial(n, 2, 6) for n in xrange(2, 17)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 28 2009]
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CROSSREFS
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Sequence in context: A010995 A122575 A014938 this_sequence A009987 A076572 A015258
Adjacent sequences: A022217 A022218 A022219 this_sequence A022221 A022222 A022223
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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