A077893 Duplicate of A077953.
1, 1, 1, 1, 3, 3, 5, 5, 11, 11, 21, 21, 43, 43, 85, 85, 171, 171, 341, 341, 683, 683, 1365, 1365
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.