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 | 211 |
| 2 | 1847 |
| 3 | 5623 |
| 4 | 30631 |
| 5 | 81509 |
| 6 | 82129 |
| 7 | 162209 |
| 8 | 173429 |
| 9 | 404671 |
| 10 | 542683 |
| 11 | 544367 |
| 12 | 1101071 |
| 13 | 1444411 |
| 14 | 2238931 |
| 15 | 5845309 |
| 16 | 6752747 |
| 17 | 6958801 |
| 18 | 11981587 |
| 19 | 13626407 |
| 20 | 49269739 |
| 21 | 83751287 |
| 22 | 147684323 |
| 23 | 166726561 |
| 24 | 378044179 |
| 25 | 895858267 |
| 26 | 1872852203 |