A050728 Decimal expansion of 7^n contains no pair of consecutive equal digits (probably finite).
0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 12, 17, 27
Offset: 0
Examples
7^27 = 65712362363534280139543.
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.
7^27 = 65712362363534280139543.