A134075 - OEIS

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A134075

Primes of the form floor(Pi*p^2) where p is a prime.

907, 3019, 5281, 11689, 16741, 33329, 241051, 248063, 382649, 556819, 852757, 1104737, 1372627, 3122771, 3590089, 5482207, 5870659, 6505361, 7059161, 7753579, 8751097, 17452957, 18080497, 18261829, 26184449, 28633609, 30561919, 37544699, 37762223

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

EXAMPLE

17^2*Pi = 907.920... and 907 is prime.

PROG

(PARI) forprime(p=2, 1e4, if(isprime(t=floor(Pi*p^2)), print1(p", "))) \\ Charles R Greathouse IV, Feb 15 2011

CROSSREFS

Cf. A134076.

Sequence in context: A216468 A031939 A253228 * A316679 A177998 A253347