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 | 1 |
| 2 | 4 |
| 3 | 13 |
| 4 | 17 |
| 5 | 128 |
| 6 | 485 |
| 7 | 692 |
| 8 | 1738 |
| 9 | 12863 |
| 10 | 77042 |
| 11 | 109705 |
| 12 | 289047 |
| 13 | 720429 |
| 14 | 4475944 |
| 15 | 75629223 |
| 16 | 182575231 |