Numbers n such that string 4,5 occurs in the base 9 representation of n but not of n+1.

Terms

a(0) =41a(1) =122a(2) =203a(3) =284a(4) =365a(5) =377a(6) =446a(7) =527a(8) =608a(9) =689a(10) =770a(11) =851a(12) =932a(13) =1013a(14) =1094a(15) =1106a(16) =1175a(17) =1256a(18) =1337a(19) =1418a(20) =1499a(21) =1580a(22) =1661a(23) =1742a(24) =1823a(25) =1835a(26) =1904a(27) =1985a(28) =2066a(29) =2147