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 | 94 |
| 3 | 2301 |
| 4 | 53644 |
| 5 | 1248517 |
| 6 | 29059380 |
| 7 | 676374187 |
| 8 | 15743068612 |
| 9 | 366430841199 |
| 10 | 8528932801462 |
| 11 | 198516848612143 |
| 12 | 4620617865735414 |
| 13 | 107548097901476485 |
| 14 | 2503256858519071030 |
| 15 | 58265046263626611537 |
| 16 | 1356159518571223920304 |
| 17 | 31565557014929042873017 |