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 | 3 |
| 2 | 4 |
| 3 | 6 |
| 4 | 22 |
| 5 | 118 |
| 6 | 479 |
| 7 | 262 |
| 8 | 3622 |
| 9 | 5878 |
| 10 | 18191 |
| 11 | 24022 |
| 12 | 132982 |
| 13 | 296278 |
| 14 | 366791 |
| 15 | 1289738 |
| 16 | 4539478 |
| 17 | 6924458 |
| 18 | 13620602 |
| 19 | 32290442 |
| 20 | 175244281 |
| 21 | 86060762 |
| 22 | 326769242 |
| 23 | 131486759 |
| 24 | 84286438 |
| 25 | 937435558 |