Numbers k such that the string 2,8 occurs in the base 9 representation of k but not of k-1.

Terms

a(0) =26a(1) =107a(2) =188a(3) =234a(4) =269a(5) =350a(6) =431a(7) =512a(8) =593a(9) =674a(10) =755a(11) =836a(12) =917a(13) =963a(14) =998a(15) =1079a(16) =1160a(17) =1241a(18) =1322a(19) =1403a(20) =1484a(21) =1565a(22) =1646a(23) =1692a(24) =1727a(25) =1808a(26) =1889a(27) =1970a(28) =2051a(29) =2106