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Search: id:A010465
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| A010465 |
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Decimal expansion of square root of 7. |
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+0
10
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| 2, 6, 4, 5, 7, 5, 1, 3, 1, 1, 0, 6, 4, 5, 9, 0, 5, 9, 0, 5, 0, 1, 6, 1, 5, 7, 5, 3, 6, 3, 9, 2, 6, 0, 4, 2, 5, 7, 1, 0, 2, 5, 9, 1, 8, 3, 0, 8, 2, 4, 5, 0, 1, 8, 0, 3, 6, 8, 3, 3, 4, 4, 5, 9, 2, 0, 1, 0, 6, 8, 8, 2, 3, 2, 3, 0, 2, 8, 3, 6, 2, 7, 7, 6, 0, 3, 9, 2, 8, 8, 6, 4, 7, 4, 5, 4, 3, 6, 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 2 followed by {1, 1, 1, 4} repeated. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 01 2009]
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,20000
R. J. Nemiroff & J. Bonnell, The first 1 million digits of the square root of 7
S. Plouffe, Plouffe's Inverter, sqrt(7) to 100000 digits
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EXAMPLE
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2.645751311064590590501615753639260425710259183082450180368334459201068... [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 01 2009]
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PROGRAM
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(PARI) { default(realprecision, 20080); x=sqrt(7); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010465.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 01 2009]
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CROSSREFS
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Cf. A010121 Continued fraction. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 01 2009]
Sequence in context: A087428 A115508 A021382 this_sequence A065630 A110633 A119250
Adjacent sequences: A010462 A010463 A010464 this_sequence A010466 A010467 A010468
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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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