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A060196
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Decimal expansion of 1 + 1/(1*3) + 1/(1*3*5) + 1/(1*3*5*7) + ...
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3
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1, 4, 1, 0, 6, 8, 6, 1, 3, 4, 6, 4, 2, 4, 4, 7, 9, 9, 7, 6, 9, 0, 8, 2, 4, 7, 1, 1, 4, 1, 9, 1, 1, 5, 0, 4, 1, 3, 2, 3, 4, 7, 8, 6, 2, 5, 6, 2, 5, 1, 9, 2, 1, 9, 7, 7, 2, 4, 6, 3, 9, 4, 6, 8, 1, 6, 4, 7, 8, 1, 7, 9, 8, 4, 9, 0, 3, 9, 7, 9, 2, 7, 1, 1, 5, 4, 0, 9, 2, 2, 4, 7, 7, 8, 6, 1, 1, 6, 4, 0, 1, 4, 7, 2, 8
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,20000
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FORMULA
| sqrt(e*pi/2)*erf(1/sqrt(2)), or 2^(-1/2)*exp(1/2)*sqrt(pi)*(1 - erfc(1/sqrt(2)) - Michael Kleber (michael.kleber(AT)gmail.com), Mar 21, 2001
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EXAMPLE
| 1.410686134642447997690824711419115041323478...
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PROG
| (PARI) { default(realprecision, 20080); x=2^(-1/2)*exp(1/2)*sqrt(Pi)*(1 - erfc(1/sqrt(2))); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b060196.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 02 2009]
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CROSSREFS
| Sequence in context: A117377 A046784 A011349 * A204169 A119305 A198215
Adjacent sequences: A060193 A060194 A060195 * A060197 A060198 A060199
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KEYWORD
| nonn,cons
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AUTHOR
| Evan Michael Adams (evan(AT)tampabay.rr.com), simon.plouffe(AT)sympatico.ca, Mar 21 2001
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EXTENSIONS
| More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Mar 27 2001
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