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 | 169 |
| 2 | 181 |
| 3 | 202 |
| 4 | 244 |
| 5 | 322 |
| 6 | 478 |
| 7 | 778 |
| 8 | 1378 |
| 9 | 2554 |
| 10 | 4906 |
| 11 | 9562 |
| 12 | 18874 |
| 13 | 37402 |
| 14 | 74458 |
| 15 | 148378 |
| 16 | 296218 |
| 17 | 591514 |
| 18 | 1182106 |
| 19 | 2362522 |
| 20 | 4723354 |
| 21 | 9443482 |
| 22 | 18883738 |
| 23 | 37761178 |
| 24 | 75516058 |
| 25 | 151019674 |
| 26 | 302026906 |
| 27 | 604029082 |
| 28 | 1208033434 |
| 29 | 2416017562 |
| 30 | 4831985818 |