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 | 2 |
| 2 | 28 |
| 3 | 644 |
| 4 | 3904 |
| 5 | 24582 |
| 6 | 91212 |
| 7 | 317576 |
| 8 | 857248 |
| 9 | 2174090 |
| 10 | 4780060 |
| 11 | 10007052 |
| 12 | 19154208 |
| 13 | 35306894 |
| 14 | 61236364 |
| 15 | 103134992 |
| 16 | 166247872 |
| 17 | 261796626 |
| 18 | 398879388 |
| 19 | 596338580 |
| 20 | 868942720 |
| 21 | 1246516502 |
| 22 | 1751814988 |
| 23 | 2429877144 |
| 24 | 3314320224 |