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A119666
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Each term k provides a value of (sum-of-digits of 5^k)/k that is closer to Pi than the previous value.
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2
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1, 2, 4, 6, 8, 139, 309, 390, 819, 2868, 6751, 8045, 9414, 15008, 15375, 56839, 84383, 151286, 307650, 516962, 533919, 2021009
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OFFSET
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1,2
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LINKS
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Table of n, a(n) for n=1..22.
Hans Havermann, Search for the next term.
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MATHEMATICA
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a = Infinity; fn = 1; p = N[Pi, 24]; Do[ fn = 5fn; b = N[ Abs[Pi - Plus @@ IntegerDigits@fn/n], 24]; If[b < a, a = b; Print@n], {n, 711000}] (* Robert G. Wilson v, Sep 08 2007 *)
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CROSSREFS
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Sequence in context: A228327 A081507 A115336 * A087302 A351777 A030149
Adjacent sequences: A119663 A119664 A119665 * A119667 A119668 A119669
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KEYWORD
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base,fini,nonn,more
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AUTHOR
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Hans Havermann, Jul 29 2006, Jul 31 2006, Aug 05 2006
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STATUS
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approved
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