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 | 1 |
| 2 | 20613 |
| 3 | 424895769 |
| 4 | 938169853 |
| 5 | 404929649 |
| 6 | 1693398709 |
| 7 | 828374025 |
| 8 | 631292077 |
| 9 | 1220159969 |
| 10 | 1976439269 |
| 11 | 430365689 |
| 12 | 2020481117 |
| 13 | 2026879057 |
| 14 | 763630101 |
| 15 | 1799615721 |
| 16 | 1993805069 |
| 17 | 1909315521 |
| 18 | 1935501125 |
| 19 | 533477081 |
| 20 | 1446792893 |
| 21 | 636483633 |
| 22 | 859521397 |
| 23 | 574460361 |
| 24 | 126586221 |