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A061382
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Decimal expansion of Pi/e.
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12
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1, 1, 5, 5, 7, 2, 7, 3, 4, 9, 7, 9, 0, 9, 2, 1, 7, 1, 7, 9, 1, 0, 0, 9, 3, 1, 8, 3, 3, 1, 2, 6, 9, 6, 2, 9, 9, 1, 2, 0, 8, 5, 1, 0, 2, 3, 1, 6, 4, 4, 1, 5, 8, 2, 0, 4, 9, 9, 7, 0, 6, 5, 3, 5, 3, 2, 7, 2, 8, 8, 6, 3, 1, 8, 4, 0, 9, 1, 6, 9, 3, 9, 4, 4, 0, 1, 8, 8, 4, 3, 4, 2, 3, 5, 6, 7, 3, 5, 5, 8, 8, 0, 4, 4, 8
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Also Integral_{ -Inf...Inf. } Cos(x)/(1 + x^2) dx. - Robert G. Wilson v
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REFERENCES
| Phil J. Nahin, "An Imaginary Tale, The Story of [Sqrt(-1)]," Princeton University Press, Princeton, NJ 1998, pg 188.
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,20000
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FORMULA
| Equals A000796 / A001113.
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EXAMPLE
| Pi/e ~= 1.15572734979092171791009318331269629912...
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MATHEMATICA
| RealDigits[ Pi/E, 10, 110][[1]] (* Or *) RealDigits[ Integrate[ Cos[x]/(1 + x^2), {x, -Infinity, Infinity}], 10, 111][[1]] (from Robert G. Wilson v Jan 15 2004)
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PROG
| (PARI) { default(realprecision, 20080); x=Pi/exp(1); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b061382.txt", n, " ", d)) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 22 2009]
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CROSSREFS
| Cf. A061666 for continued fraction for Pi/e.
Sequence in context: A008945 A008705 A173932 * A113272 A049471 A049789
Adjacent sequences: A061379 A061380 A061381 * A061383 A061384 A061385
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KEYWORD
| cons,nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Jun 08 2001
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