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 | 11 |
| 2 | 17 |
| 3 | 31 |
| 4 | 251 |
| 5 | 1429 |
| 6 | 3041 |
| 7 | 16561 |
| 8 | 16927 |
| 9 | 53299 |
| 10 | 56897 |
| 11 | 89783 |
| 12 | 95089 |
| 13 | 213599 |
| 14 | 282977 |
| 15 | 345547 |
| 16 | 432587 |
| 17 | 592223 |
| 18 | 763457 |
| 19 | 906949 |
| 20 | 915799 |
| 21 | 1050449 |
| 22 | 1058389 |
| 23 | 1485017 |
| 24 | 1577341 |
| 25 | 1678399 |
| 26 | 1780253 |
| 27 | 1855549 |
| 28 | 2131687 |
| 29 | 2374289 |
| 30 | 2658259 |