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 | 2469 |
| 2 | 135782 |
| 3 | 222426283 |
| 4 | 323436384 |
| 5 | 424446485 |
| 6 | 525456586 |
| 7 | 626466687 |
| 8 | 727476788 |
| 9 | 828486889 |
| 10 | 929496990 |
| 11 | 1030507091 |
| 12 | 1131517192 |
| 13 | 1232527293 |
| 14 | 1333537394 |
| 15 | 1434547495 |
| 16 | 1535557596 |
| 17 | 1636567697 |
| 18 | 1737577798 |
| 19 | 1838587899 |
| 20 | 19395979820 |
| 21 | 20220420620821 |
| 22 | 21221421621822 |