Almost repdigits in balancing and Lucas-balancing sequences

In this paper, we define the notion of almost repdigit as a positive integer whose digits are all equal except for at most one digit, and we search all terms of the balancing and Lucas-balancing sequences which are almost repdigits. In particular, the only almost repdigits in balancing sequence are 0, 1, 6, and the only almost repdigits in Lucas-balancing sequence are 1, 3, 17, 99, 577, 3363.