A061240 Prime numbers == 5 (mod 9).

5, 23, 41, 59, 113, 131, 149, 167, 239, 257, 293, 311, 347, 383, 401, 419, 491, 509, 563, 599, 617, 653, 743, 761, 797, 887, 941, 977, 1013, 1031, 1049, 1103, 1193, 1229, 1283, 1301, 1319, 1373, 1409, 1427, 1481, 1499, 1553, 1571, 1607, 1697, 1733, 1787

Offset

1,1

Comments

A010888(a(n)) = 5. - Reinhard Zumkeller, Feb 25 2005

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[ Range[ 2500 ], PrimeQ[ # ] && Mod[ #, 9 ] == 5 & ]
Select[Prime[Range[300]], Mod[#, 9]==5&] (* Harvey P. Dale, Oct 13 2017 *)

Prog

(Magma) [ p: p in PrimesUpTo(2000) | p mod 9 in {5} ]; // Vincenzo Librandi, Dec 25 2010
(PARI) select(p->p%9==5, primes(1000)) \\ Charles R Greathouse IV, Sep 26 2012

Crossrefs

Cf. A061237..A061242.

Sequence in context: A371622 A044447 A242215 * A243401 A062341 A176251

Adjacent sequences: A061237 A061238 A061239 * A061241 A061242 A061243

Keyword

nonn,easy

Author

Amarnath Murthy, Apr 23 2001

Extensions

More terms from Robert G. Wilson v, May 10 2001

Status

approved