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 | 64 |
| 2 | 169 |
| 3 | 9598 |
| 4 | 63688 |
| 5 | 1720343 |
| 6 | 17074988 |
| 7 | 337258048 |
| 8 | 4073313193 |
| 9 | 69400592022 |
| 10 | 925095934000 |
| 11 | 14659747315671 |
| 12 | 205401189207844 |
| 13 | 3139657337791256 |
| 14 | 45112454177593993 |
| 15 | 677231112691330078 |
| 16 | 9855259627789459448 |