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) |
|---|---|
| 0 | 1 |
| 1 | 1807 |
| 2 | 21883 |
| 3 | 100801 |
| 4 | 303829 |
| 5 | 720931 |
| 6 | 1466767 |
| 7 | 2680693 |
| 8 | 4526761 |
| 9 | 7193719 |
| 10 | 10895011 |
| 11 | 15868777 |
| 12 | 22377853 |
| 13 | 30709771 |
| 14 | 41176759 |
| 15 | 54115741 |
| 16 | 69888337 |
| 17 | 88880863 |
| 18 | 111504331 |
| 19 | 138194449 |
| 20 | 169411621 |
| 21 | 205640947 |
| 22 | 247392223 |
| 23 | 295199941 |