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A067099
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Floor[radius of the circumscribed circle of a regular n-gon with unit sides].
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7
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0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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3,11
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LINKS
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Harry J. Smith, Table of n, a(n) for n=3,...,1000
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FORMULA
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a(n) = floor[1/{2*sin(pi/n)}]
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EXAMPLE
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a(15) = floor [1/(2*sin(pi/15)) ] = [2.40486717237206534804886845877139] =2.
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MATHEMATICA
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Table[ Floor[ 1/(2*Sin[Pi/n])], {n, 3, 75} ]
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PROG
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(PARI) { for (n=3, 1000, write("b067099.txt", n, " ", floor(1/(2*sin(Pi/n)))) ) } [From Harry J. Smith, May 16 2010]
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CROSSREFS
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Cf. A067100.
Sequence in context: A111854 A132085 A111654 * A098429 A132090 A071538
Adjacent sequences: A067096 A067097 A067098 * A067100 A067101 A067102
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KEYWORD
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easy,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 07 2002
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EXTENSIONS
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More terms from Robert G. Wilson v, Jan 09 2002
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STATUS
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approved
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