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 | 0 |
| 2 | 76 |
| 3 | 484 |
| 4 | 11044 |
| 5 | 215607 |
| 6 | 4039259 |
| 7 | 74367790 |
| 8 | 1358980008 |
| 9 | 25131223920 |
| 10 | 454913826610 |
| 11 | 8308148502158 |
| 12 | 150817534124764 |
| 13 | 2737572458162063 |
| 14 | 49698482940927931 |
| 15 | 901239835437298103 |
| 16 | 16348456871339244625 |