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 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 61 |
| 6 | 181 |
| 7 | 2521 |
| 8 | 7561 |
| 9 | 415801 |
| 10 | 1247401 |
| 11 | 1099944846001 |
| 12 | 146100174169950001 |
| 13 | 1156675078903494150001 |
| 14 | 750321420485151941966263672363958662088980270355720625000001 |