# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a076355 Showing 1-1 of 1 %I A076355 #33 Sep 08 2022 08:45:07 %S A076355 0,2,3,5,7,9,10,12,13,16,17,19,20,21,24,25,26,29,30,31,34,42,43,45,48, %T A076355 49,54,57,59,60,61,63,64,67,72,74,75,76,80,81,82,89,90,91,93,94,95, %U A076355 100,101,104,106,107,108,109,111,112,113,116,123,125,127,128,133,134,136 %N A076355 Numbers n such that 210*n + 11 is prime. %C A076355 First sets of exactly n consecutive integers; %C A076355 0; %C A076355 2, 3; %C A076355 19..21; %C A076355 106..109; %C A076355 1270..1274; %C A076355 1178..1183; %C A076355 15304..15310; %C A076355 2562331..2562338; %C A076355 108571234..108571242; %C A076355 1594939699..1594939708. %H A076355 Vincenzo Librandi, Table of n, a(n) for n = 1..1000 %F A076355 a(n) = (A140840(n) - 11)/210. - _Zak Seidov_, Jan 15 2014 %e A076355 n=2: 210*2 + 11 = 431 is prime. %t A076355 Select[Range[0,150],PrimeQ[210#+11]&] (* _Harvey P. Dale_, Dec 09 2011 *) %o A076355 (Magma) [n: n in [0..150]| IsPrime(210*n + 11)]; // _Vincenzo Librandi_, Oct 04 2012 %o A076355 (PARI) is(n)=isprime(210*n+11) \\ _Charles R Greathouse IV_, May 22 2017 %Y A076355 Cf. A140840. %K A076355 easy,nonn %O A076355 1,2 %A A076355 _Zak Seidov_, Oct 08 2002 %E A076355 0 inserted by _Ray Chandler_, Apr 30 2010 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE