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 | 12 |
| 2 | 250 |
| 3 | 7422 |
| 4 | 216466 |
| 5 | 6056182 |
| 6 | 161435322 |
| 7 | 4148236142 |
| 8 | 103476193518 |
| 9 | 2523840866186 |
| 10 | 60444664118334 |
| 11 | 1426665304637082 |
| 12 | 33267668122964462 |
| 13 | 768000220549574982 |
| 14 | 17579038730691587714 |
| 15 | 399459371232734669014 |