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.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 906150258 |
| 3 | 906150259 |
| 4 | 906150260 |
| 5 | 906150263 |
| 6 | 906150264 |
| 7 | 906150331 |
| 8 | 906150334 |
| 9 | 906150337 |
| 10 | 906150338 |
| 11 | 906150339 |
| 12 | 906150358 |
| 13 | 906150359 |
| 14 | 906150362 |
| 15 | 906150363 |
| 16 | 906150368 |
| 17 | 906150387 |
| 18 | 906150388 |
| 19 | 906150389 |
| 20 | 906150406 |
| 21 | 906150407 |