2,6

Table of n, a(n) for n=2..92.

Radius = floor(sqrt(Area/Pi)).

If A = 5. floor(sqrt(5/Pi)) = 1, the third entry.

(PARI) f(n) = forprime(x=1, n, print1(floor(sqrt(x/Pi))", "))

Sequence in context: A003058 A000194 A168255 * A100617 A076471 A165116

Adjacent sequences: A097426 A097427 A097428 * A097430 A097431 A097432

nonn

Cino Hilliard, Aug 22 2004

approved