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 | 3 |
| 3 | 9 |
| 4 | 13 |
| 5 | 31 |
| 6 | 43 |
| 7 | 143 |
| 8 | 167 |
| 9 | 185 |
| 10 | 215 |
| 11 | 1141 |
| 12 | 1321 |
| 13 | 231 |
| 14 | 763 |
| 15 | 3277 |
| 16 | 3517 |
| 17 | 7289 |
| 18 | 8009 |
| 19 | 24787 |
| 20 | 26587 |
| 21 | 27847 |
| 22 | 29431 |
| 23 | 332021 |
| 24 | 355781 |
| 25 | 365681 |
| 26 | 382841 |
| 27 | 394721 |
| 28 | 413201 |
| 29 | 2949827 |
| 30 | 3157727 |
| 31 | 643003 |
| 32 | 665179 |
| 33 | 3417371 |
| 34 | 3535181 |
| 35 | 3616031 |
| 36 | 3782351 |
| 37 | 1279777 |
| 38 | 3956371 |
| 39 | 4046461 |