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 | 7460575007 |
| 2 | 2252257379 |
| 3 | 6079057763 |
| 4 | 5316126547 |
| 5 | 7447839221 |
| 6 | 5414146799 |
| 7 | 2933188807 |
| 8 | 8997407299 |
| 9 | 7407299869 |
| 10 | 2998696009 |
| 11 | 9869600953 |
| 12 | 2368469479 |
| 13 | 6947930299 |
| 14 | 7714456831 |
| 15 | 1445683123 |
| 16 | 6619147987 |
| 17 | 8715043283 |
| 18 | 7724849201 |
| 19 | 8492011193 |
| 20 | 1193531621 |
| 21 | 2117195173 |