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 | 323 |
| 3 | 93749 |
| 4 | 1959551 |
| 5 | 46118407 |
| 6 | 1207959551 |
| 7 | 37661140520651 |
| 8 | 1390911669927935 |
| 9 | 55123269399790045 |
| 10 | 2333521433367183359 |
| 11 | 105094533691406249999 |
| 12 | 5017514388048998039551 |
| 13 | 13456471561751415850795007 |
| 14 | 751799469150919163867112019 |