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 | 29 |
| 2 | 267 |
| 3 | 1269 |
| 4 | 4246 |
| 5 | 11635 |
| 6 | 28346 |
| 7 | 64256 |
| 8 | 138913 |
| 9 | 290180 |
| 10 | 589799 |
| 11 | 1170809 |
| 12 | 2274787 |
| 13 | 4331570 |
| 14 | 8091182 |
| 15 | 14838137 |
| 16 | 26733456 |
| 17 | 47351379 |
| 18 | 82508140 |
| 19 | 141522193 |
| 20 | 239102564 |
| 21 | 398139077 |
| 22 | 653770622 |
| 23 | 1059242178 |
| 24 | 1694236163 |
| 25 | 2676588670 |
| 26 | 4178587937 |