Search: id:A099007 Results 1-1 of 1 results found. %I A099007 %S A099007 3,19,47,139,367,467,839,1319,1699,1907,3407,4003,4987,6079,7703,10499, %T A099007 11527,13159,16747,17387,19379,23687,25219,26003,30103,32707,33599, %U A099007 35419,38239,44203,50599,53959,55103,57427,62219,69767,72379,76387 %N A099007 Primes of the form 6n^2 - 2n - 1. %C A099007 All terms are == 3 (mod 4). %e A099007 For n = 2 we have 6*2^2 - 2*2 -1 = 19. %o A099007 (PARI) for(k=1,120,if(isprime(p=6*k^2-2*k-1),print1(p,","))) %Y A099007 Cf. A098828. %Y A099007 Sequence in context: A028880 A162905 A063553 this_sequence A023280 A054697 A112627 %Y A099007 Adjacent sequences: A099004 A099005 A099006 this_sequence A099008 A099009 A099010 %K A099007 nonn %O A099007 1,1 %A A099007 Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Nov 07 2004 %E A099007 Edited, corrected and extended by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 12 2004 Search completed in 0.001 seconds