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Search: id:A022354
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| A022354 |
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Fibonacci sequence beginning 0 20. |
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+0
1
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| 0, 20, 20, 40, 60, 100, 160, 260, 420, 680, 1100, 1780, 2880, 4660, 7540, 12200, 19740, 31940, 51680, 83620, 135300, 218920, 354220, 573140, 927360, 1500500, 2427860, 3928360, 6356220, 10284580
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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Tanya Khovanova, Recursive Sequences
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FORMULA
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G.f.: 20*x/(1-x-x^2). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 20 2008]
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MATHEMATICA
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a={}; b=0; c=20; AppendTo[a, b]; AppendTo[a, c]; Do[b=b+c; AppendTo[a, b]; c=b+c; AppendTo[a, c], {n, 4!}]; a [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Sep 17 2008]
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CROSSREFS
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Sequence in context: A081245 A010859 A040381 this_sequence A165841 A091235 A078286
Adjacent sequences: A022351 A022352 A022353 this_sequence A022355 A022356 A022357
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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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