Odd palindromes

Atharv loves palindromic numbers very much. Once he was playing with it and thought to make a list of all positive palindromic numbers of odd length. First few odd length palindromic numbers are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 101, 111,....etc. Arthav was initially very excited about it but as the list grew he was facing great difficulty to maintain it. He then asked your help to tell him the Nth