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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 24 |
| 4 | 38 |
| 5 | 96 |
| 6 | 843 |
| 7 | 3840 |
| 8 | 12244 |
| 9 | 41612 |
| 10 | 186870 |
| 11 | 785256 |
| 12 | 2921302 |
| 13 | 10834752 |
| 14 | 43743005 |
| 15 | 176571744 |
| 16 | 684645006 |
| 17 | 2630576822 |
| 18 | 10387337222 |
| 19 | 41267967576 |
| 20 | 161904551038 |
| 21 | 631554736186 |
| 22 | 2485459256832 |
| 23 | 9822930677872 |
| 24 | 38685615768302 |