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 | 141 |
| 2 | 1394 |
| 3 | 5910 |
| 4 | 17053 |
| 5 | 39361 |
| 6 | 78602 |
| 7 | 141702 |
| 8 | 236833 |
| 9 | 373309 |
| 10 | 561704 |
| 11 | 813722 |
| 12 | 1142341 |
| 13 | 1561651 |
| 14 | 2087034 |
| 15 | 2734970 |
| 16 | 3523243 |
| 17 | 4470721 |
| 18 | 5597592 |
| 19 | 6925112 |
| 20 | 8475873 |
| 21 | 10273519 |
| 22 | 12343044 |
| 23 | 14710482 |
| 24 | 17403231 |
| 25 | 20449711 |
| 26 | 23879724 |
| 27 | 27724080 |
| 28 | 32014983 |
| 29 | 36785631 |
| 30 | 42070632 |