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 | 4 |
| 4 | 10 |
| 5 | 14 |
| 6 | 70 |
| 7 | 68 |
| 8 | 332 |
| 9 | 577 |
| 10 | 2510 |
| 11 | 2980 |
| 12 | 23372 |
| 13 | 22218 |
| 14 | 133150 |
| 15 | 300964 |
| 16 | 909382 |
| 17 | 1345634 |
| 18 | 10767202 |
| 19 | 10762820 |
| 20 | 72957100 |
| 21 | 145362932 |
| 22 | 523029526 |
| 23 | 713213956 |
| 24 | 5893709440 |
| 25 | 7060765733 |
| 26 | 35303782550 |