%I A077377
%S A077377 2,3,5,6,7,10,11,13,14,15,17,19,21,22,23,26,29,30,31,33,34,35,37,38,39,
%T A077377 41,42,43,46,47,51,53,55,57,58,59,61,62,65,66,67,69,70,71,73,74,77,78,
%U A077377 79,82,83,85,86,87,89,91,93,94,95,97,101,103,105,107,109,110,111,113
%N A077377 Square-free numbers whose external digits form a square-free number.
%Y A077377 Cf. A077376, A077378, A077379, A077380.
%Y A077377 Sequence in context: A076144 A005117 A144338 this_sequence A076786 A167171 
               A087008
%Y A077377 Adjacent sequences: A077374 A077375 A077376 this_sequence A077378 A077379 
               A077380
%K A077377 base,easy,nonn
%O A077377 1,1
%A A077377 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 06 2002