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 | 10 |
| 3 | 11 |
| 4 | 472 |
| 5 | 483 |
| 6 | 4819 |
| 7 | 5302 |
| 8 | 227503 |
| 9 | 232805 |
| 10 | 2322748 |
| 11 | 2555553 |
| 12 | 109655974 |
| 13 | 112211527 |
| 14 | 1119559717 |
| 15 | 1231771244 |
| 16 | 52853951965 |
| 17 | 54085723209 |
| 18 | 539625460846 |
| 19 | 593711184055 |
| 20 | 25475495191156 |
| 21 | 26069206375211 |
| 22 | 260098352568055 |
| 23 | 286167558943266 |
| 24 | 12279135828185227 |