%I A105988
%S A105988 177,377,707,717,737,767,771,778,779,3777,4777,5777,7277,7377,7737,7747,
%T A105988 7771,7773,7778,7779,7787,7977,8777,9777,17777,37777,57777,70777,77177,
%U A105988 77277,77677,77757,77767,77771,277777,577777,677777,707777,737777
%N A105988 Near-repdigit semiprimes with 7 as repeated digit.
%e A105988 a(2)=377 is a term because 377 is a semiprime and all digits are equal 
               to 7 except one.
%Y A105988 Sequence in context: A164843 A077786 A147028 this_sequence A083620 A097317 
               A052461
%Y A105988 Adjacent sequences: A105985 A105986 A105987 this_sequence A105989 A105990 
               A105991
%K A105988 base,nonn
%O A105988 1,1
%A A105988 Shyam Sunder Gupta (guptass(AT)rediffmail.com), Apr 29 2005