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 | 4 |
| 4 | 5 |
| 5 | 7 |
| 6 | 8 |
| 7 | 13 |
| 8 | 16 |
| 9 | 22 |
| 10 | 112 |
| 11 | 134 |
| 12 | 139 |
| 13 | 250 |
| 14 | 445 |
| 15 | 475 |
| 16 | 512 |
| 17 | 544 |
| 18 | 1318 |
| 19 | 1588 |
| 20 | 3307 |
| 21 | 4216 |
| 22 | 4457 |
| 23 | 4474 |
| 24 | 4979 |
| 25 | 6241 |
| 26 | 9551 |
| 27 | 17939 |
| 28 | 20405 |
| 29 | 48106 |
| 30 | 54467 |
| 31 | 144797 |