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 A061238 Prime numbers == 2 (mod 9). 14
 2, 11, 29, 47, 83, 101, 137, 173, 191, 227, 263, 281, 317, 353, 389, 443, 461, 479, 569, 587, 641, 659, 677, 821, 839, 857, 911, 929, 947, 983, 1019, 1091, 1109, 1163, 1181, 1217, 1289, 1307, 1361, 1433, 1451, 1487, 1523, 1559, 1613, 1667, 1721, 1811, 1847 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A010888(a(n)) = 2. - Reinhard Zumkeller, Feb 25 2005 Except for the first term "2", all current prime numbers are of the form: 18*n-7. - Vladimir Joseph Stephan Orlovsky, Jul 13 2011 LINKS Daniel Starodubtsev, Table of n, a(n) for n = 1..10000 MATHEMATICA Select[ Range[ 2000 ], PrimeQ[ # ] && Mod[ #, 9 ] == 2 & ] Join[{2}, Select[Range[11, 5000, 18], PrimeQ]] (* Vladimir Joseph Stephan Orlovsky, Jul 13 2011 *) (* ~30 times faster *) PROG (Magma)[ p: p in PrimesUpTo(2000) | p mod 9 in {2} ]; // Vincenzo Librandi, Dec 25 2010 (PARI) select(n->n%9==2, primes(400)) \\ Charles R Greathouse IV, May 27 2014 CROSSREFS Cf. A061237..A061242. Sequence in context: A213522 A136317 A090389 * A046500 A062123 A345213 Adjacent sequences: A061235 A061236 A061237 * A061239 A061240 A061241 KEYWORD nonn,easy AUTHOR Amarnath Murthy, Apr 23 2001 EXTENSIONS More terms from Robert G. Wilson v, May 10 2001 STATUS approved

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Last modified December 6 02:52 EST 2022. Contains 358594 sequences. (Running on oeis4.)