# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a028424 Showing 1-1 of 1 %I A028424 #5 Mar 30 2012 17:20:44 %S A028424 1,2,12,13,14,15,16,17,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77, %T A028424 78,79,80,999,1000,1001,1002,1003,1004,1005,1006,1007,1008,1009,1010, %U A028424 1011,1012,1013,1014,1015,1016,1017,1018,1019,1020,1021,1022,1023 %N A028424 Clog sequence in base 3. Right to left concatenation of n,int(log_3(n)),int(log_3(int(log_3(n)))),... in base 3. %K A028424 nonn,base,easy %O A028424 1,2 %A A028424 _Olivier GĂ©rard_ # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE