OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
EXAMPLE
Floor[Pi*6^2] = 113, a prime, so 6 is a term of the sequence.
MATHEMATICA
Select[Range[1, 10^3], PrimeQ[Floor[Pi * #^2]] &]
PROG
(PARI) is(n)=isprime(floor(Pi*n^2)) \\ Charles R Greathouse IV, May 22 2017
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Joseph L. Pe, Jan 29 2002
STATUS
approved