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 | 9387629 |
| 3 | 18276717 |
| 4 | 40036062 |
| 5 | 252447645 |
| 6 | 293291802 |
| 7 | 319596455 |
| 8 | 327091015 |
| 9 | 401241904 |
| 10 | 421675344 |
| 11 | 471333967 |
| 12 | 483656680 |
| 13 | 1059439524 |
| 14 | 1162179372 |
| 15 | 1651177394 |
| 16 | 2339341839 |
| 17 | 2423329650 |
| 18 | 2596829984 |
| 19 | 2749510742 |
| 20 | 2903809499 |
| 21 | 2941064795 |
| 22 | 2956438949 |