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 | 7129199 |
| 2 | 9867275 |
| 3 | 18918704 |
| 4 | 43009524 |
| 5 | 43882488 |
| 6 | 45828324 |
| 7 | 126511280 |
| 8 | 132082191 |
| 9 | 150786063 |
| 10 | 252625743 |
| 11 | 285816464 |
| 12 | 303792200 |
| 13 | 313887275 |
| 14 | 330130475 |
| 15 | 336945392 |
| 16 | 337795524 |
| 17 | 361652075 |
| 18 | 380035664 |
| 19 | 480297824 |
| 20 | 579423924 |
| 21 | 647037215 |
| 22 | 650012724 |
| 23 | 756098624 |
| 24 | 986677500 |
| 25 | 1000308015 |
| 26 | 1001438136 |
| 27 | 1139325668 |
| 28 | 1140314075 |
| 29 | 1205629524 |
| 30 | 1315277147 |