Numbers n such that string 3,0 occurs in the base 9 representation of n but not of n+1.

Terms

a(0) =27a(1) =108a(2) =189a(3) =251a(4) =270a(5) =351a(6) =432a(7) =513a(8) =594a(9) =675a(10) =756a(11) =837a(12) =918a(13) =980a(14) =999a(15) =1080a(16) =1161a(17) =1242a(18) =1323a(19) =1404a(20) =1485a(21) =1566a(22) =1647a(23) =1709a(24) =1728a(25) =1809a(26) =1890a(27) =1971a(28) =2052a(29) =2133