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 | 55410683 |
| 2 | 102291263 |
| 3 | 141430363 |
| 4 | 226383163 |
| 5 | 280064453 |
| 6 | 457433213 |
| 7 | 531290533 |
| 8 | 542418463 |
| 9 | 555695713 |
| 10 | 582949903 |
| 11 | 629444003 |
| 12 | 664652203 |
| 13 | 665813153 |
| 14 | 777809113 |
| 15 | 802919653 |
| 16 | 852404053 |
| 17 | 887653633 |
| 18 | 894328243 |
| 19 | 898734673 |
| 20 | 979048313 |
| 21 | 993517643 |