A139705 Number of entries in A139704 ("nearly palindromic numbers") with n digits.
0, 81, 153, 2268, 3150, 38718
Offset: 1
This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.