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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 6 |
| 4 | 65 |
| 5 | 71 |
| 6 | 349 |
| 7 | 420 |
| 8 | 4549 |
| 9 | 4969 |
| 10 | 24425 |
| 11 | 29394 |
| 12 | 318365 |
| 13 | 347759 |
| 14 | 1709401 |
| 15 | 2057160 |
| 16 | 22281001 |
| 17 | 24338161 |
| 18 | 119633645 |
| 19 | 143971806 |
| 20 | 1559351705 |
| 21 | 1703323511 |
| 22 | 8372645749 |
| 23 | 10075969260 |
| 24 | 109132338349 |