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 | 2 |
| 2 | 97 |
| 3 | 3877 |
| 4 | 4943 |
| 5 | 50741 |
| 6 | 1487159 |
| 7 | 3356117 |
| 8 | 131047091863 |
| 9 | 449627893189 |
| 10 | 906460844407 |
| 11 | 61168531626487 |
| 12 | 141835115384731 |
| 13 | 749668095960389 |
| 14 | 1259394274876189 |
| 15 | 3849791511371129 |
| 16 | 6669425423437787 |
| 17 | 11674340378841221 |
| 18 | 75041264698436783 |