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A067100
Floor[radius of the inscribed-circle of a regular n-gon with unit sides].
6
0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 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((cot(Pi/n)/2)).
EXAMPLE
a(24) = floor(cot(Pi/24)/2) = floor(3.79787705636257522026320957021073) = 3.
MATHEMATICA
Table[ Floor[ Cot[Pi/n]/2], {n, 3, 75} ]
PROG
(PARI) { for (n=3, 1000, write("b067100.txt", n, " ", floor((cotan(Pi/n)/2))) ) } \\ Harry J. Smith, May 19 2010
CROSSREFS
Sequence in context: A003074 A279222 A276798 * A296237 A074802 A071804
KEYWORD
easy,nonn
AUTHOR
Amarnath Murthy, Jan 07 2002
EXTENSIONS
More terms from Robert G. Wilson v, Jan 09 2002
STATUS
approved