login
A075519
Primes p such that floor(p/4) is prime.
5
11, 13, 23, 29, 31, 47, 53, 71, 79, 127, 149, 151, 167, 173, 191, 239, 269, 271, 293, 317, 359, 389, 431, 439, 509, 557, 599, 607, 631, 653, 719, 727, 773, 797, 911, 919, 967, 1031, 1087, 1109
OFFSET
1,1
LINKS
EXAMPLE
23 is a term, as 23 = 4*5 + 3.
MATHEMATICA
Select[Prime[Range[6! ]], PrimeQ[Floor[ #/4]]&] (* Vladimir Joseph Stephan Orlovsky, Nov 25 2009 *)
PROG
(Magma) [p: p in PrimesUpTo(2000)| IsPrime(Floor(p/4))]; // Vincenzo Librandi, Aug 04 2013
CROSSREFS
Sequence in context: A289696 A365313 A023232 * A019406 A289688 A080790
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Sep 19 2002
EXTENSIONS
Definition corrected by Eric M. Schmidt, Aug 04 2013
STATUS
approved