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 | 1 |
| 2 | 91 |
| 3 | 1366 |
| 4 | 9542 |
| 5 | 43535 |
| 6 | 151313 |
| 7 | 435324 |
| 8 | 1089804 |
| 9 | 2452269 |
| 10 | 5071495 |
| 11 | 9794290 |
| 12 | 17873362 |
| 13 | 31098587 |
| 14 | 51953981 |
| 15 | 83802680 |
| 16 | 131102232 |
| 17 | 199652505 |
| 18 | 296878515 |
| 19 | 432150478 |
| 20 | 617143390 |
| 21 | 866238439 |
| 22 | 1196968553 |
| 23 | 1630510388 |
| 24 | 2192225060 |