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 | 15 |
| 3 | 18 |
| 4 | 167 |
| 5 | 684 |
| 6 | 698 |
| 7 | 1642 |
| 8 | 3691 |
| 9 | 4245 |
| 10 | 5370 |
| 11 | 6238 |
| 12 | 6926 |
| 13 | 9646 |
| 14 | 10656 |
| 15 | 10999 |
| 16 | 11868 |
| 17 | 14188 |
| 18 | 35787 |