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A016655
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Decimal expansion of ln(32) = 5*ln(2).
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8
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3, 4, 6, 5, 7, 3, 5, 9, 0, 2, 7, 9, 9, 7, 2, 6, 5, 4, 7, 0, 8, 6, 1, 6, 0, 6, 0, 7, 2, 9, 0, 8, 8, 2, 8, 4, 0, 3, 7, 7, 5, 0, 0, 6, 7, 1, 8, 0, 1, 2, 7, 6, 2, 7, 0, 6, 0, 3, 4, 0, 0, 0, 4, 7, 4, 6, 6, 9, 6, 8, 1, 0, 9, 8, 4, 8, 4, 7, 3, 5, 7, 8, 0, 2, 9, 3, 1, 6, 6, 3, 4, 9, 8, 2, 0, 9, 3, 4, 3
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| ln(32) = 10*ln(2)/2 = 5*ln(2) = 5*A002162, so 10*(1/2-1/4+1/6-1/8+1/10-1/2n...)=ln(32). -Eric Desbiaux (moongerms(AT)wanadoo.fr), Nov 26 2008
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REFERENCES
| M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 2.
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LINKS
| Harry J. Smith, Table of n, a(n) for n = 1..20000
M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
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FORMULA
| log(2)/2 = (1-1/2-1/4) + (1/3-1/6-1/8) + (1/5-1/10-1/12)+.. [Jolley, Summation of Series, Dover (1961) eq (73)]
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EXAMPLE
| 3.465735902799726547086160607290882840377500671801276270603400047466968...
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PROG
| (PARI) log(32) \\ Charles R Greathouse IV, Jan 24 2012
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CROSSREFS
| Cf. A195909, A195913, A195697, A016460 (continued fraction).
Sequence in context: A047840 A037189 A083342 * A057757 A058838 A001177
Adjacent sequences: A016652 A016653 A016654 * A016656 A016657 A016658
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KEYWORD
| nonn,cons
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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