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Search: id:A001672
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| 1, 3, 9, 31, 97, 306, 961, 3020, 9488, 29809, 93648, 294204, 924269, 2903677, 9122171, 28658145, 90032220, 282844563, 888582403, 2791563949, 8769956796, 27551631842, 86556004191, 271923706893
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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T. D. Noe, Table of n, a(n) for n=0..300
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FORMULA
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a(n)^(1/n) converges to pi because |1-a(n)/pi^n|=|pi^n-a(n)|/pi^n<1/pi^n and so a(n)^(1/n)=(pi^n*(1+o(1)))^(1/n)=pi*(1+o(1)). - Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Jan 22 2006
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MATHEMATICA
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a[n_]:=Floor[Pi^n]; [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 12 2008]
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CROSSREFS
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Sequence in context: A031031 A034550 A018370 this_sequence A138281 A049416 A148959
Adjacent sequences: A001669 A001670 A001671 this_sequence A001673 A001674 A001675
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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