Numbers whose base-11 representation has the same nonzero number of 9's and 10's.

Terms

a(0) =109a(1) =119a(2) =230a(3) =240a(4) =351a(5) =361a(6) =472a(7) =482a(8) =593a(9) =603a(10) =714a(11) =724a(12) =835a(13) =845a(14) =956a(15) =966a(16) =1077a(17) =1087a(18) =1099a(19) =1110a(20) =1121a(21) =1132a(22) =1143a(23) =1154a(24) =1165a(25) =1176a(26) =1187a(27) =1199a(28) =1200a(29) =1201