Search: id:A078839 Results 1-1 of 1 results found. %I A078839 %S A078839 2,12,69,73,150,184,252,328,339,464,483,541,729,747,758,763,1014,1047, %T A078839 1090,1094,1158,1264,1359,1601,1679,1693,1698,1780,2368,2641,2815,3292, %U A078839 3393,3606,3682,3857,3909,3919,3963,4087,4111,4289,4314,5017,5398,5466 %N A078839 Numbers n such that the binary expansion of 3^n has the same number of 0's and 1's. %C A078839 Does the limit of a(n)/n^2 as n -> infinity exist? %t A078839 balanced[n_] := Module[{d=IntegerDigits[n, 2]}, Plus@@d==Length[d]/2]; Select[Range[0, 5500], balanced[3^# ]&] %Y A078839 Cf. A031443, A011754. %Y A078839 Sequence in context: A000954 A056636 A128103 this_sequence A026306 A116398 A001542 %Y A078839 Adjacent sequences: A078836 A078837 A078838 this_sequence A078840 A078841 A078842 %K A078839 nonn %O A078839 1,1 %A A078839 Benoit Cloitre (benoit7848c(AT)orange.fr), Dec 06 2002 Search completed in 0.001 seconds