A083455 Duplicate of A083829.
1, 2, 7, 77, 141, 151, 161, 242, 252, 262, 777, 7777, 14041, 14141, 14241, 15051
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.