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 | 23126821 |
| 2 | 335139421 |
| 3 | 427990531 |
| 4 | 709267021 |
| 5 | 738459541 |
| 6 | 809484061 |
| 7 | 1016774221 |
| 8 | 1075376821 |
| 9 | 1122243739 |
| 10 | 1492684411 |
| 11 | 1557748501 |
| 12 | 1744951261 |
| 13 | 2726543821 |
| 14 | 2772069301 |
| 15 | 3146962261 |
| 16 | 3267684421 |
| 17 | 3395830621 |
| 18 | 3691544011 |
| 19 | 3705614221 |
| 20 | 3873482341 |
| 21 | 4315462621 |
| 22 | 4959079861 |