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 | 4 |
| 3 | 7 |
| 4 | 9 |
| 5 | 10 |
| 6 | 11 |
| 7 | 13 |
| 8 | 15 |
| 9 | 22 |
| 10 | 23 |
| 11 | 29 |
| 12 | 45 |
| 13 | 51 |
| 14 | 52 |
| 15 | 55 |
| 16 | 69 |
| 17 | 98 |
| 18 | 122 |
| 19 | 157 |
| 20 | 268 |
| 21 | 367 |
| 22 | 476 |
| 23 | 481 |
| 24 | 1670 |
| 25 | 1964 |
| 26 | 2736 |
| 27 | 4696 |
| 28 | 7933 |
| 29 | 22245 |