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 | 56 |
| 2 | 2642 |
| 3 | 27854 |
| 4 | 149942 |
| 5 | 559028 |
| 6 | 1643204 |
| 7 | 4099204 |
| 8 | 9059092 |
| 9 | 18251656 |
| 10 | 34171380 |
| 11 | 60292468 |
| 12 | 101279218 |
| 13 | 163252890 |
| 14 | 254042820 |
| 15 | 383508158 |
| 16 | 563826638 |
| 17 | 809873706 |
| 18 | 1139548482 |
| 19 | 1574209250 |
| 20 | 2139036592 |
| 21 | 2863528108 |
| 22 | 3781894246 |
| 23 | 4933615190 |