A004694 Fibonacci numbers written in base 13. (Next term contains a non-decimal character.)
0, 1, 1, 2, 3, 5, 8, 10, 18, 28, 43
Offset: 0
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.