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 | 9 |
| 2 | 1371 |
| 3 | 148796 |
| 4 | 15913695 |
| 5 | 1707101599 |
| 6 | 184140417890 |
| 7 | 19823918037604 |
| 8 | 2133436326533143 |
| 9 | 229681994753502100 |
| 10 | 24725866354382952217 |
| 11 | 2661724100255128134369 |
| 12 | 286536699674194768262220 |
| 13 | 30845921492404301091244774 |
| 14 | 3320584102598070051873302366 |