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 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 21 |
| 6 | 25 |
| 7 | 33 |
| 8 | 49 |
| 9 | 54 |
| 10 | 133 |
| 11 | 245 |
| 12 | 255 |
| 13 | 318 |
| 14 | 1023 |
| 15 | 1486 |
| 16 | 3334 |
| 17 | 6821 |
| 18 | 8555 |
| 19 | 11605 |
| 20 | 42502 |
| 21 | 44409 |
| 22 | 90291 |
| 23 | 92511 |
| 24 | 140303 |