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A010524
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Decimal expansion of square root of 72.
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9
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8, 4, 8, 5, 2, 8, 1, 3, 7, 4, 2, 3, 8, 5, 7, 0, 2, 9, 2, 8, 1, 0, 1, 3, 2, 3, 4, 5, 2, 5, 8, 1, 8, 8, 4, 7, 1, 4, 1, 8, 0, 3, 1, 2, 5, 2, 2, 6, 1, 6, 8, 8, 4, 3, 9, 0, 6, 0, 0, 7, 8, 4, 2, 7, 9, 4, 4, 3, 9, 4, 8, 7, 0, 7, 7, 2, 6, 4, 2, 2, 3, 3, 1, 0, 2, 3, 2, 5, 2, 0, 5, 9, 6, 5, 8, 4, 9, 4, 3
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| This is also the ratio of the volume of a cube to the volume of a regular tetrahedron of the same edge length. - Rick L. Shepherd (rshepherd2(AT)hotmail.com), May 29 2002
Continued fraction expansion is 8 followed by {2, 16} repeated. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 08 2009]
Decimal expansion of shortest length, (B), of segment from side BC through incenter to side BA in right triangle ABC with sidelengths (a,b,c)=(8,15,17), see A195284. - Clark Kimberling, Sep 14 2011
Decimal expansion of shortest length, (B), of segment from side BC through incenter to side BA in right triangle ABC with sidelengths (a,b,c)=(7,24,25). -
Clark Kimberling, Sep 14 2011
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LINKS
| Harry J. Smith, Table of n, a(n) for n = 1..20000
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EXAMPLE
| 8.485281374238570292810132345258188471418031252261688439060078427944394...
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MATHEMATICA
| RealDigits[N[72^(1/2), 200]][[1]] (* From Vladimir Joseph Stephan Orlovsky, Jan 23 2012 *)
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PROG
| (PARI) { default(realprecision, 20080); x=sqrt(72); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b010524.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 08 2009]
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CROSSREFS
| Cf. A040063 (continued fraction).
Sequence in context: A021848 A021545 A141614 * A195344 A202998 A110835
Adjacent sequences: A010521 A010522 A010523 * A010525 A010526 A010527
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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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