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 | 13 |
| 2 | 144 |
| 3 | 1597 |
| 4 | 17711 |
| 5 | 196418 |
| 6 | 2178309 |
| 7 | 24157817 |
| 8 | 267914296 |
| 9 | 2971215073 |
| 10 | 32951280099 |
| 11 | 365435296162 |
| 12 | 4052739537881 |
| 13 | 44945570212853 |
| 14 | 498454011879264 |
| 15 | 5527939700884757 |
| 16 | 61305790721611591 |
| 17 | 679891637638612258 |