6*n/5 = (n written backwards), n > 0.

Terms

a(0) =45a(1) =495a(2) =4545a(3) =4995a(4) =45045a(5) =49995a(6) =450045a(7) =454545a(8) =495495a(9) =499995a(10) =4500045a(11) =4549545a(12) =4950495a(13) =4999995a(14) =45000045a(15) =45045045a(16) =45454545a(17) =45499545a(18) =49500495a(19) =49545495a(20) =49954995a(21) =49999995a(22) =450000045a(23) =450495045a(24) =454504545a(25) =454999545a(26) =495000495a(27) =495495495a(28) =499504995