OFFSET
3,1
LINKS
Kival Ngaokrajang, Illustration of initial terms
FORMULA
a(n) = floor(Pi/area(n)) where area(n) = Pi*r(n)^2, r(n) = (1 - cos(Pi/n))/2 = sin(Pi/(2*n))^2, n >= 3.
PROG
(PARI)
{
for (n=3, 100,
b=Pi*(n-2)/(2*n);
r=(1-sin(b))/2;
area=Pi*r^2;
a=floor(Pi/area);
print1(a, ", ")
)
}
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Kival Ngaokrajang, Jun 20 2014
EXTENSIONS
Edited. Formula simplified - Wolfdieter Lang, Jun 27 2014
STATUS
approved