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 | 5 |
| 2 | 13 |
| 3 | 109 |
| 4 | 641 |
| 5 | 757 |
| 6 | 4007 |
| 7 | 5387 |
| 8 | 7901 |
| 9 | 9349 |
| 10 | 11467 |
| 11 | 23297 |
| 12 | 33503 |
| 13 | 42193 |
| 14 | 57139 |
| 15 | 76343 |
| 16 | 100213 |
| 17 | 209597 |
| 18 | 252583 |
| 19 | 261631 |
| 20 | 373621 |
| 21 | 424231 |
| 22 | 432287 |
| 23 | 503593 |
| 24 | 507961 |
| 25 | 618593 |
| 26 | 699427 |
| 27 | 791489 |
| 28 | 825389 |
| 29 | 895243 |
| 30 | 943837 |
| 31 | 1212917 |
| 32 | 1455901 |
| 33 | 1573577 |