Numbers whose base-11 representation has the same nonzero number of 5's and 6's.

Terms

a(0) =61a(1) =71a(2) =182a(3) =192a(4) =303a(5) =313a(6) =424a(7) =434a(8) =545a(9) =555a(10) =611a(11) =622a(12) =633a(13) =644a(14) =655a(15) =671a(16) =672a(17) =673a(18) =674a(19) =675a(20) =678a(21) =679a(22) =680a(23) =681a(24) =688a(25) =699a(26) =710a(27) =721a(28) =731a(29) =742