%I A043250
%S A043250 49,94,149,194,249,294,349,394,449,490,549,594,649,694,749,794,
%T A043250 849,894,940,994,1049,1094,1149,1194,1249,1294,1349,1394,1449,
%U A043250 1490,1549,1594,1649,1694,1749,1794,1849,1894,1940,1994,2049
%N A043250 Numbers n such that 4 and 9 occur juxtaposed in the base 10 representation 
               of n but not of n-1.
%Y A043250 Sequence in context: A146064 A031180 A039427 this_sequence A044030 A165339 
               A131601
%Y A043250 Adjacent sequences: A043247 A043248 A043249 this_sequence A043251 A043252 
               A043253
%K A043250 nonn,base
%O A043250 1,1
%A A043250 Clark Kimberling (ck6(AT)evansville.edu)