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 | 24 |
| 5 | 29 |
| 6 | 54 |
| 7 | 234 |
| 8 | 1704 |
| 9 | 1713 |
| 10 | 1794 |
| 11 | 2694 |
| 12 | 13584 |
| 13 | 13597 |
| 14 | 13766 |
| 15 | 16314 |
| 16 | 57264 |
| 17 | 57281 |
| 18 | 57570 |
| 19 | 63078 |
| 20 | 173544 |
| 21 | 173565 |
| 22 | 174006 |
| 23 | 184170 |
| 24 | 428568 |
| 25 | 428593 |
| 26 | 429218 |
| 27 | 446118 |
| 28 | 919968 |
| 29 | 919997 |
| 30 | 920838 |
| 31 | 946938 |
| 32 | 1783008 |
| 33 | 1783041 |
| 34 | 1784130 |
| 35 | 1822278 |
| 36 | 3196728 |
| 37 | 3196765 |