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 | 1 |
| 2 | 2188 |
| 3 | 282124 |
| 4 | 10282124 |
| 5 | 181141499 |
| 6 | 1982230040 |
| 7 | 15475158552 |
| 8 | 93839322648 |
| 9 | 467508775773 |
| 10 | 1989944010148 |
| 11 | 7445104711204 |
| 12 | 25010673566116 |
| 13 | 76686775501847 |
| 14 | 217396817767472 |
| 15 | 575714897767472 |
| 16 | 1436257466526768 |
| 17 | 3398894618986905 |
| 18 | 7674255436599996 |
| 19 | 16612972826599996 |