%I A004623
%S A004623 1,5,19,25,47,61,89,95,103,125,131,173,229,235,257,271,
%T A004623 305,313,361,383,397,439,445,467,475,509,515,523,593,607,
%U A004623 625,655,677,691,719,733,761,859,865,887,893,929,971,1013
%N A004623 Divisible only by primes congruent to 5 mod 7.
%Y A004623 Sequence in context: A167766 A106957 A022143 this_sequence A018475 A119238 
               A061388
%Y A004623 Adjacent sequences: A004620 A004621 A004622 this_sequence A004624 A004625 
               A004626
%K A004623 nonn
%O A004623 1,2
%A A004623 N. J. A. Sloane (njas(AT)research.att.com).