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 | 2 |
| 3 | 3 |
| 4 | 14 |
| 5 | 18 |
| 6 | 44 |
| 7 | 54 |
| 8 | 89 |
| 9 | 469 |
| 10 | 2060 |
| 11 | 2985 |
| 12 | 6197 |
| 13 | 16452 |
| 14 | 19393 |
| 15 | 21205 |
| 16 | 49657 |
| 17 | 74670 |
| 18 | 76374 |