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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 113 |
| 4 | 1982 |
| 5 | 38886 |
| 6 | 817062 |
| 7 | 17981769 |
| 8 | 409186310 |
| 9 | 9549411950 |
| 10 | 227307541448 |
| 11 | 5497312072330 |
| 12 | 134696099554276 |
| 13 | 3336563455537768 |
| 14 | 83419226227330722 |
| 15 | 2102274863070771033 |
| 16 | 53347639317495439302 |