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 | 9 |
| 3 | 12 |
| 4 | 13 |
| 5 | 16 |
| 6 | 19 |
| 7 | 21 |
| 8 | 49 |
| 9 | 61 |
| 10 | 67 |
| 11 | 84 |
| 12 | 106 |
| 13 | 160 |
| 14 | 191 |
| 15 | 207 |
| 16 | 250 |
| 17 | 268 |
| 18 | 373 |
| 19 | 436 |
| 20 | 783 |
| 21 | 2321 |
| 22 | 3133 |
| 23 | 3786 |
| 24 | 3805 |
| 25 | 4842 |
| 26 | 5128 |
| 27 | 8167 |
| 28 | 13599 |
| 29 | 29431 |
| 30 | 35308 |