%I A044321
%S A044321 70,151,232,313,394,475,556,630,718,799,880,961,1042,1123,1204,
%T A044321 1285,1359,1447,1528,1609,1690,1771,1852,1933,2014,2088,2176,
%U A044321 2257,2338,2419,2500,2581,2662,2743,2817,2905,2986,3067,3148
%N A044321 Numbers n such that string 7,7 occurs in the base 9 representation of 
               n but not of n-1.
%Y A044321 Sequence in context: A044193 A044574 A043482 this_sequence A044702 A063320 
               A044402
%Y A044321 Adjacent sequences: A044318 A044319 A044320 this_sequence A044322 A044323 
               A044324
%K A044321 nonn,base
%O A044321 1,1
%A A044321 Clark Kimberling (ck6(AT)evansville.edu)