Numbers whose base-10 representation has the same nonzero number of 2's and 8's.

Terms

a(0) =28a(1) =82a(2) =128a(3) =182a(4) =208a(5) =218a(6) =238a(7) =248a(8) =258a(9) =268a(10) =278a(11) =280a(12) =281a(13) =283a(14) =284a(15) =285a(16) =286a(17) =287a(18) =289a(19) =298a(20) =328a(21) =382a(22) =428a(23) =482a(24) =528a(25) =582a(26) =628a(27) =682a(28) =728a(29) =782