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 | 16 |
| 2 | 256 |
| 3 | 2297 |
| 4 | 13599 |
| 5 | 61545 |
| 6 | 230619 |
| 7 | 748950 |
| 8 | 2171533 |
| 9 | 5738616 |
| 10 | 14032520 |
| 11 | 32116856 |
| 12 | 69421945 |
| 13 | 142742110 |
| 14 | 280837253 |
| 15 | 531285626 |
| 16 | 970419825 |
| 17 | 1717396652 |
| 18 | 2953706474 |
| 19 | 4949721932 |
| 20 | 8100222189 |
| 21 | 12971210226 |
| 22 | 20360769871 |
| 23 | 31377189150 |
| 24 | 47538110053 |