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A010482
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Decimal expansion of square root of 27.
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6
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5, 1, 9, 6, 1, 5, 2, 4, 2, 2, 7, 0, 6, 6, 3, 1, 8, 8, 0, 5, 8, 2, 3, 3, 9, 0, 2, 4, 5, 1, 7, 6, 1, 7, 1, 0, 0, 8, 2, 8, 4, 1, 5, 7, 6, 1, 4, 3, 1, 1, 4, 1, 8, 8, 4, 1, 6, 7, 4, 2, 0, 9, 3, 8, 3, 5, 5, 7, 9, 9, 0, 5, 0, 7, 2, 6, 4, 0, 0, 1, 1, 1, 2, 4, 3, 4, 3, 8, 5, 6, 0, 2, 7, 1, 7, 4, 5, 7, 2
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Continued fraction expansion is 5 followed by {5, 10} repeated. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 04 2009]
6+A010482 represents the surface of a dodecahedron of side equal to one. S=3*a^2(2+sqrt(3)) with a=1. [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 10 2010]
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,20000
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EXAMPLE
| 5.196152422706631880582339024517617100828415761431141884167420938355799... [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 04 2009]
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MATHEMATICA
| RealDigits[N[Sqrt[27], 200]][[1]] (*From Vladimir Joseph Stephan Orlovsky, Feb 22 2011*)
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PROG
| (PARI) { default(realprecision, 20080); x=sqrt(27); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010482.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 04 2009]
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CROSSREFS
| Cf. A040021 Continued fraction. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 04 2009]
Sequence in context: A199736 A198671 A129343 * A135856 A097414 A154605
Adjacent sequences: A010479 A010480 A010481 * A010483 A010484 A010485
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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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