Numbers k such that 0 and 5 occur juxtaposed in the base-9 representation of k but not of k-1.

Terms

a(0) =45a(1) =86a(2) =126a(3) =167a(4) =207a(5) =248a(6) =288a(7) =329a(8) =369a(9) =405a(10) =450a(11) =491a(12) =531a(13) =572a(14) =612a(15) =653a(16) =693a(17) =734a(18) =774a(19) =815a(20) =855a(21) =896a(22) =936a(23) =977a(24) =1017a(25) =1058a(26) =1098a(27) =1134a(28) =1179a(29) =1220