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 | 24 |
| 2 | 291 |
| 3 | 4035 |
| 4 | 54773 |
| 5 | 748740 |
| 6 | 10203847 |
| 7 | 139221499 |
| 8 | 1898916677 |
| 9 | 25902054180 |
| 10 | 353312300646 |
| 11 | 4819296560043 |
| 12 | 65736776328102 |
| 13 | 896671271822835 |
| 14 | 12230890096966674 |
| 15 | 166833355609514988 |
| 16 | 2275661718111926504 |