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Search: id:A140504
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| 5, 6, 8, 12, 20, 36, 68, 132, 260, 516, 1028, 2052, 4100, 8196, 16388, 32772, 65540, 131076, 262148, 524292, 1048580, 2097156, 4194308, 8388612, 16777220, 33554436, 67108868, 134217732, 268435460, 536870916, 1073741828
(list; graph; listen)
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OFFSET
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0,1
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FORMULA
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G.f.: (5-9*x)/((1-x)*(1-2*x)) [From Jaume Oliver Lafont (joliverlafont(AT)gmail.com), Aug 30 2009]
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MATHEMATICA
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Table[2^n + 4, {n, 0, 30}] [From Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Aug 04 2008]
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PROGRAM
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(Other) sage: [gaussian_binomial(n, 1, 2)+5 for n in xrange(0, 31)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 31 2009]
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CROSSREFS
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Sequence in context: A033158 A032721 A105106 this_sequence A120131 A047437 A096467
Adjacent sequences: A140501 A140502 A140503 this_sequence A140505 A140506 A140507
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KEYWORD
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nonn,easy
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AUTHOR
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Paul Curtz (bopcrtz(AT)free.fr), Jun 30 2008
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Aug 04 2008
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