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A061812
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Floor(Pi*n) is a square.
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1
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0, 3, 8, 26, 32, 46, 54, 92, 115, 199, 268, 306, 326, 368, 390, 436, 796, 828, 861, 963, 1071, 1146, 1304, 1345, 1429, 1472, 1560, 2193, 2246, 2300, 2465, 2636, 2873, 2995, 3120, 3312, 3377, 3443, 3713, 3782, 3922, 3993, 4137, 4738, 4816, 5297, 6062, 6239
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Harry J. Smith, Table of n, a(n) for n=0,...,1000
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EXAMPLE
| Floor(Pi*861)=2704 which is 52^2. Floor(Pi*1146)=3600=60^2.
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MATHEMATICA
| Select[Range[0, 7000], IntegerQ[Sqrt[Floor[Pi #]]]&] (* From Harvey P. Dale, May 14 2011 *)
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PROG
| (PARI) for(n=0, 1200, if(issquare(floor(Pi*n)), print(n)))
(PARI) { n=-1; for (a=0, 3714376, if (issquare(floor(Pi*a)), write("b061812.txt", n++, " ", a)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 28 2009]
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CROSSREFS
| Sequence in context: A097713 A009392 A130648 * A009452 A206141 A148801
Adjacent sequences: A061809 A061810 A061811 * A061813 A061814 A061815
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KEYWORD
| easy,nice,nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Jul 01 2001
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EXTENSIONS
| More terms from Naohiro Nomoto (n_nomoto(AT)yabumi.com), Oct 04 2001
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