Numbers n such that string 3,4 occurs in the base 9 representation of n but not of n+1.

Terms

a(0) =31a(1) =112a(2) =193a(3) =274a(4) =287a(5) =355a(6) =436a(7) =517a(8) =598a(9) =679a(10) =760a(11) =841a(12) =922a(13) =1003a(14) =1016a(15) =1084a(16) =1165a(17) =1246a(18) =1327a(19) =1408a(20) =1489a(21) =1570a(22) =1651a(23) =1732a(24) =1745a(25) =1813a(26) =1894a(27) =1975a(28) =2056a(29) =2137