%I A078655
%S A078655 17,41,67,127,157,191,283,331,367,401,509,563,599,709,797,877,919,967,
%T A078655 1087,1171,1217,1297,1409,1447,1523,1741,1787,1847,2027,2081,2221,2269,
%U A078655 2351,2477,2549,2609,2719,2803,2909,3019,3067,3229,3299,3469,3559
%N A078655 a(n) = prime(k) where k = n-th prime congruent to 1 mod 6.
%o A078655 (PARI) pip(n,m,r) = {sr=0; forprime(x=3,n, if(x%m == r,v=prime(x); sr+=1.0/
               v; print1(v" "); ) ); print(); print("m="m" r="r" sr="sr); }
%Y A078655 Sequence in context: A104043 A076330 A087658 this_sequence A052279 A147215 
               A126790
%Y A078655 Adjacent sequences: A078652 A078653 A078654 this_sequence A078656 A078657 
               A078658
%K A078655 nonn
%O A078655 0,1
%A A078655 Cino Hilliard (hillcino368(AT)gmail.com), Dec 14 2002