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Search: id:A019692
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| A019692 |
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Decimal expansion of 2*Pi. |
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+0
12
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| 6, 2, 8, 3, 1, 8, 5, 3, 0, 7, 1, 7, 9, 5, 8, 6, 4, 7, 6, 9, 2, 5, 2, 8, 6, 7, 6, 6, 5, 5, 9, 0, 0, 5, 7, 6, 8, 3, 9, 4, 3, 3, 8, 7, 9, 8, 7, 5, 0, 2, 1, 1, 6, 4, 1, 9, 4, 9, 8, 8, 9, 1, 8, 4, 6, 1, 5, 6, 3, 2, 8, 1, 2, 5, 7, 2, 4, 1, 7, 9, 9, 7, 2, 5, 6, 0, 6, 9, 6, 5, 0, 6, 8, 4, 2, 3, 4, 1, 3
(list; cons; graph; listen)
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OFFSET
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1,1
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COMMENT
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pi/5 or 2*pi/10 is the expected surface area containing completely a Brownian curve (trajectory) on plane. - Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 28 2005
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,20000
C. Garban & J. A. T. Ferreras, The expected area of the filled planar Brownian loop is pi/5
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EXAMPLE
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6.283185307179586476925286766559005768394338798750211641949889184615632... [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), May 31 2009]
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PROGRAM
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(PARI) { default(realprecision, 20080); x=2*Pi; for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b019692.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), May 31 2009]
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CROSSREFS
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Cf. A058291 Continued fraction. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), May 31 2009]
Sequence in context: A163340 A021090 A086744 this_sequence A031259 A059629 A082577
Adjacent sequences: A019689 A019690 A019691 this_sequence A019693 A019694 A019695
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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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