Search: id:A043243
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%I A043243
%S A043243 37,73,137,173,237,273,337,370,437,473,537,573,637,673,730,773,
%T A043243 837,873,937,973,1037,1073,1137,1173,1237,1273,1337,1370,1437,
%U A043243 1473,1537,1573,1637,1673,1730,1773,1837,1873,1937,1973,2037
%N A043243 Numbers n such that 3 and 7 occur juxtaposed in the base 10 representation 
               of n but not of n-1.
%Y A043243 Sequence in context: A055604 A135952 A039420 this_sequence A044023 A069204 
               A153208
%Y A043243 Adjacent sequences: A043240 A043241 A043242 this_sequence A043244 A043245 
               A043246
%K A043243 nonn,base
%O A043243 1,1
%A A043243 Clark Kimberling (ck6(AT)evansville.edu)

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