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A067099
Floor[radius of the circumscribed circle of a regular n-gon with unit sides].
8
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
OFFSET
3,11
LINKS
FORMULA
a(n) = floor(1/(2*sin(Pi/n))).
EXAMPLE
a(15) = floor(1/(2*sin(Pi/15))) = floor(2.40486717237206534804886845877139) = 2.
MATHEMATICA
Table[ Floor[ 1/(2*Sin[Pi/n])], {n, 3, 75} ]
PROG
(PARI) { for (n=3, 1000, write("b067099.txt", n, " ", floor(1/(2*sin(Pi/n)))) ) } \\ Harry J. Smith, May 16 2010
CROSSREFS
Cf. A067100.
Sequence in context: A111654 A264749 A240567 * A098429 A132090 A235043
KEYWORD
easy,nonn
AUTHOR
Amarnath Murthy, Jan 07 2002
EXTENSIONS
More terms from Robert G. Wilson v, Jan 09 2002
STATUS
approved