Numbers n such that string 6,4 occurs in the base 9 representation of n but not of n+1.

Terms

a(0) =58a(1) =139a(2) =220a(3) =301a(4) =382a(5) =463a(6) =530a(7) =544a(8) =625a(9) =706a(10) =787a(11) =868a(12) =949a(13) =1030a(14) =1111a(15) =1192a(16) =1259a(17) =1273a(18) =1354a(19) =1435a(20) =1516a(21) =1597a(22) =1678a(23) =1759a(24) =1840a(25) =1921a(26) =1988a(27) =2002a(28) =2083a(29) =2164