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 | 4758958741 |
| 2 | 5612345261 |
| 3 | 6169169561 |
| 4 | 6306815239 |
| 5 | 6646984159 |
| 6 | 7335508261 |
| 7 | 8645089003 |
| 8 | 8806019249 |
| 9 | 9047808247 |
| 10 | 9148138313 |
| 11 | 9466071347 |
| 12 | 9907846261 |
| 13 | 10055451683 |
| 14 | 11063821453 |
| 15 | 11475026363 |
| 16 | 11603081459 |
| 17 | 12292390637 |
| 18 | 12750876857 |
| 19 | 13833827471 |
| 20 | 14636472007 |
| 21 | 15876700949 |