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 | 3 |
| 2 | 20963909 |
| 3 | 45608209 |
| 4 | 46939069 |
| 5 | 57856709 |
| 6 | 73805093 |
| 7 | 83307563 |
| 8 | 83983931 |
| 9 | 89836889 |
| 10 | 90151643 |
| 11 | 95786459 |
| 12 | 98527859 |
| 13 | 98886679 |
| 14 | 116260099 |
| 15 | 118084559 |
| 16 | 118955549 |
| 17 | 153404593 |
| 18 | 155710213 |
| 19 | 190926341 |
| 20 | 204854891 |
| 21 | 221010899 |
| 22 | 238175309 |
| 23 | 271884073 |
| 24 | 295874083 |
| 25 | 299614369 |