Numbers k such that (k + R(k)) / (k - R(k)) = +-11 where R(k) is the digit reversal of k (A004086).

Terms

a(0) =45a(1) =54a(2) =495a(3) =594a(4) =4545a(5) =4995a(6) =5454a(7) =5994a(8) =45045a(9) =49995a(10) =54054a(11) =59994a(12) =450045a(13) =454545a(14) =495495a(15) =499995a(16) =540054a(17) =545454a(18) =594594a(19) =599994a(20) =4500045a(21) =4549545a(22) =4950495a(23) =4999995a(24) =5400054a(25) =5459454a(26) =5940594a(27) =5999994a(28) =45000045a(29) =45045045