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 | 406 |
| 2 | 861 |
| 3 | 39621 |
| 4 | 2166321 |
| 5 | 3924201 |
| 6 | 11146281 |
| 7 | 14804961 |
| 8 | 19198306 |
| 9 | 73951041 |
| 10 | 83417986 |
| 11 | 97951006 |
| 12 | 209643526 |
| 13 | 310415986 |
| 14 | 522339681 |
| 15 | 526225461 |
| 16 | 583333246 |
| 17 | 611153241 |
| 18 | 801460666 |
| 19 | 1601581906 |
| 20 | 2520251506 |
| 21 | 2690954841 |
| 22 | 4455349606 |
| 23 | 6681853401 |
| 24 | 9895642221 |
| 25 | 13878029901 |