%I A023380
%S A023380 5,7,9,11,15,21,29,53,101,197,471,1205,3927,19651,137593,1243889,
%T A023380 17815781,446377513,21886017793,2290044969551,697988552388639,
%U A023380 733856563397342627,3102723977467356326765,72303720506476062470266309
%N A023380 a(n+1) = a(n) converted to base 7 from base 5 (written in base 10).
%Y A023380 Sequence in context: A026282 A080384 A086398 this_sequence A076190 A028885 
               A024910
%Y A023380 Adjacent sequences: A023377 A023378 A023379 this_sequence A023381 A023382 
               A023383
%K A023380 nonn
%O A023380 1,1
%A A023380 David W. Wilson (davidwwilson(AT)comcast.net)