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 | 3971 |
| 4 | 53389 |
| 5 | 720417 |
| 6 | 9706901 |
| 7 | 130854309 |
| 8 | 1763845523 |
| 9 | 23775564134 |
| 10 | 320481684651 |
| 11 | 4319920870201 |
| 12 | 58230152122968 |
| 13 | 784910642479634 |
| 14 | 10580166410594089 |
| 15 | 142614855902267366 |
| 16 | 1922370270814992840 |