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 | 3 |
| 3 | 49 |
| 4 | 6 |
| 5 | 14641 |
| 6 | 20 |
| 7 | 594823321 |
| 8 | 30 |
| 9 | 8281 |
| 10 | 304 |
| 11 | 41426511213649 |
| 12 | 60 |
| 13 | 491258904256726154641 |
| 14 | 832 |
| 15 | 717409 |
| 16 | 168 |
| 17 | 160470643909878751793805444097921 |
| 18 | 612 |
| 19 | 114445997944945591651333831028437092270721 |
| 20 | 432 |
| 21 | 87616 |
| 22 | 44032 |
| 23 | 6111571184724799803076702357055363809 |
| 24 | 420 |
| 25 | 13521270961 |