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 | 3 |
| 3 | 4 |
| 4 | 8 |
| 5 | 9 |
| 6 | 10 |
| 7 | 13 |
| 8 | 20 |
| 9 | 27 |
| 10 | 74 |
| 11 | 89 |
| 12 | 93 |
| 13 | 137 |
| 14 | 139 |
| 15 | 296 |
| 16 | 310 |
| 17 | 662 |
| 18 | 749 |
| 19 | 1249 |
| 20 | 2540 |
| 21 | 2848 |
| 22 | 3309 |
| 23 | 8677 |
| 24 | 11573 |
| 25 | 15286 |
| 26 | 17125 |
| 27 | 39526 |
| 28 | 42187 |
| 29 | 44476 |
| 30 | 47823 |
| 31 | 92897 |