A036237 Duplicate of A015948.
1, 2, 5, 4, 7, 10, 15, 8, 11, 14, 13, 28, 21, 78, 17, 16, 19, 22, 49, 42, 23, 26, 1577, 40
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.