Numbers k such that the string 6,8 occurs in the base 9 representation of k but not of k-1.

Terms

a(0) =62a(1) =143a(2) =224a(3) =305a(4) =386a(5) =467a(6) =548a(7) =558a(8) =629a(9) =710a(10) =791a(11) =872a(12) =953a(13) =1034a(14) =1115a(15) =1196a(16) =1277a(17) =1287a(18) =1358a(19) =1439a(20) =1520a(21) =1601a(22) =1682a(23) =1763a(24) =1844a(25) =1925a(26) =2006a(27) =2016a(28) =2087a(29) =2168