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 | 5 |
| 4 | 12 |
| 5 | 33 |
| 6 | 64 |
| 7 | 237 |
| 8 | 364 |
| 9 | 1309 |
| 10 | 2912 |
| 11 | 7989 |
| 12 | 10036 |
| 13 | 80757 |
| 14 | 88948 |
| 15 | 226889 |
| 16 | 732996 |
| 17 | 2313981 |
| 18 | 2445052 |
| 19 | 19491205 |
| 20 | 20015492 |
| 21 | 114457609 |
| 22 | 188499788 |
| 23 | 270028737 |
| 24 | 278417344 |