Numbers whose base-11 representation has the same nonzero number of 4's and 8's.

Terms

a(0) =52a(1) =92a(2) =173a(3) =213a(4) =294a(5) =334a(6) =415a(7) =455a(8) =492a(9) =503a(10) =514a(11) =525a(12) =547a(13) =558a(14) =569a(15) =572a(16) =573a(17) =574a(18) =575a(19) =577a(20) =578a(21) =579a(22) =581a(23) =582a(24) =591a(25) =602a(26) =657a(27) =697a(28) =778a(29) =818