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 | 30 |
| 3 | 246 |
| 4 | 255 |
| 5 | 264 |
| 6 | 273 |
| 7 | 282 |
| 8 | 291 |
| 9 | 300 |
| 10 | 309 |
| 11 | 318 |
| 12 | 2190 |
| 13 | 2280 |
| 14 | 2370 |
| 15 | 2460 |
| 16 | 2550 |
| 17 | 2640 |
| 18 | 2730 |
| 19 | 2820 |
| 20 | 2910 |
| 21 | 19686 |
| 22 | 19767 |
| 23 | 19848 |
| 24 | 19929 |
| 25 | 20010 |
| 26 | 20091 |
| 27 | 20172 |
| 28 | 20253 |
| 29 | 20334 |
| 30 | 20424 |
| 31 | 20505 |
| 32 | 20586 |
| 33 | 20667 |
| 34 | 20748 |
| 35 | 20829 |
| 36 | 20910 |