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 | 8 |
| 2 | 17 |
| 3 | 42 |
| 4 | 101 |
| 5 | 244 |
| 6 | 589 |
| 7 | 1422 |
| 8 | 3433 |
| 9 | 8288 |
| 10 | 20009 |
| 11 | 48306 |
| 12 | 116621 |
| 13 | 281548 |
| 14 | 679717 |
| 15 | 1640982 |
| 16 | 3961681 |
| 17 | 9564344 |
| 18 | 23090369 |
| 19 | 55745082 |
| 20 | 134580533 |
| 21 | 324906148 |
| 22 | 784392829 |
| 23 | 1893691806 |
| 24 | 4571776441 |
| 25 | 11037244688 |