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 | 8 |
| 4 | 27 |
| 5 | 86 |
| 6 | 272 |
| 7 | 856 |
| 8 | 2691 |
| 9 | 8456 |
| 10 | 26567 |
| 11 | 83464 |
| 12 | 262212 |
| 13 | 823765 |
| 14 | 2587936 |
| 15 | 8130242 |
| 16 | 25541910 |
| 17 | 80242278 |
| 18 | 252088553 |
| 19 | 791959548 |
| 20 | 2488014300 |
| 21 | 7816327449 |
| 22 | 24555716893 |
| 23 | 77144059796 |
| 24 | 242355211525 |