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 | 39937 |
| 2 | 64513 |
| 3 | 921601 |
| 4 | 1514497 |
| 5 | 9188353 |
| 6 | 11059201 |
| 7 | 23500801 |
| 8 | 25159681 |
| 9 | 99328001 |
| 10 | 288000001 |
| 11 | 302078977 |
| 12 | 593920001 |
| 13 | 864000001 |
| 14 | 14400000001 |
| 15 | 16002416641 |
| 16 | 27769098241 |
| 17 | 35904000001 |
| 18 | 61120000001 |
| 19 | 61600000001 |
| 20 | 90708480001 |
| 21 | 164457013249 |