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Search: id:A010476
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| A010476 |
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Decimal expansion of square root of 20. |
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+0
4
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| 4, 4, 7, 2, 1, 3, 5, 9, 5, 4, 9, 9, 9, 5, 7, 9, 3, 9, 2, 8, 1, 8, 3, 4, 7, 3, 3, 7, 4, 6, 2, 5, 5, 2, 4, 7, 0, 8, 8, 1, 2, 3, 6, 7, 1, 9, 2, 2, 3, 0, 5, 1, 4, 4, 8, 5, 4, 1, 7, 9, 4, 4, 9, 0, 8, 2, 1, 0, 4, 1, 8, 5, 1, 2, 7, 5, 6, 0, 9, 7, 9, 8, 8, 2, 8, 8, 2, 8, 8, 1, 6, 7, 5, 7, 5, 6, 4, 5, 4, 9, 9, 3, 9, 0, 1
(list; cons; graph; listen)
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OFFSET
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1,1
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COMMENT
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Continued fraction expansion is 4 followed by {2, 8} repeated. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 03 2009]
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,20000
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EXAMPLE
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4.472135954999579392818347337462552470881236719223051448541794490821041... [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 03 2009]
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PROGRAM
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(PARI) { default(realprecision, 20080); x=sqrt(20); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010476.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 03 2009]
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CROSSREFS
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Except for offset, same as A020762.
Cf. A040015 Continued fraction. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 03 2009]
Sequence in context: A090531 A021695 A131844 this_sequence A020762 A053510 A163106
Adjacent sequences: A010473 A010474 A010475 this_sequence A010477 A010478 A010479
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KEYWORD
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nonn,cons
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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