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A084912
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a(1) = 1024; a(n) = 5*a(n-1)/8.
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0
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OFFSET
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1,1
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COMMENTS
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Puzzle: a man offered to sell me a car two years ago for $1024; a year later his price was $640; a little while after that he asked $400; and last week he was willing to sell for $250. The next time he reduces I shall buy. At what price will I buy the car if he makes consistent reductions?
Answer: a(5) = 1250/8 = $156.25 (not an integer).
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LINKS
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Table of n, a(n) for n=1..4.
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MATHEMATICA
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NestList[5/8 #&, 1024, 3] (* Harvey P. Dale, Nov 07 2017 *)
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CROSSREFS
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Sequence in context: A336779 A030001 A336778 * A336780 A217850 A023075
Adjacent sequences: A084909 A084910 A084911 * A084913 A084914 A084915
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KEYWORD
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nonn,dumb,easy,fini,full
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AUTHOR
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Matt Kimbrough (mkimbrough(AT)mfrpc.com), Jul 14 2003
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EXTENSIONS
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G.f. removed by Georg Fischer, May 15 2019
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STATUS
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approved
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