Numbers n such that string 2,6 occurs in the base 9 representation of n but not of n+1.

Terms

a(0) =24a(1) =105a(2) =186a(3) =224a(4) =267a(5) =348a(6) =429a(7) =510a(8) =591a(9) =672a(10) =753a(11) =834a(12) =915a(13) =953a(14) =996a(15) =1077a(16) =1158a(17) =1239a(18) =1320a(19) =1401a(20) =1482a(21) =1563a(22) =1644a(23) =1682a(24) =1725a(25) =1806a(26) =1887a(27) =2024a(28) =2049a(29) =2130