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 | 23 |
| 3 | 509 |
| 4 | 2267 |
| 5 | 9157 |
| 6 | 26437 |
| 7 | 44357 |
| 8 | 55921 |
| 9 | 82301 |
| 10 | 184843 |
| 11 | 276173 |
| 12 | 611069 |
| 13 | 732271 |
| 14 | 757577 |
| 15 | 1006559 |
| 16 | 1067611 |
| 17 | 1195547 |
| 18 | 2132113 |
| 19 | 2576683 |
| 20 | 3243511 |
| 21 | 3302393 |
| 22 | 4258091 |
| 23 | 5530033 |
| 24 | 7326931 |
| 25 | 7984121 |
| 26 | 10518353 |
| 27 | 10748449 |
| 28 | 10864151 |
| 29 | 11096587 |
| 30 | 11937257 |