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 | 6 |
| 4 | 14 |
| 5 | 23 |
| 6 | 93 |
| 7 | 95 |
| 8 | 343 |
| 9 | 1924 |
| 10 | 13358 |
| 11 | 27385 |
| 12 | 54709 |
| 13 | 150554 |
| 14 | 445242 |
| 15 | 581211 |
| 16 | 589819 |
| 17 | 14733535 |
| 18 | 18859421 |
| 19 | 19861702 |
| 20 | 371619757 |
| 21 | 775908129 |
| 22 | 1076759948 |
| 23 | 1083679128 |
| 24 | 7402437933 |
| 25 | 42679464436 |