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 | 11 |
| 2 | 19 |
| 3 | 25 |
| 4 | 55 |
| 5 | 61 |
| 6 | 113 |
| 7 | 131 |
| 8 | 133 |
| 9 | 439 |
| 10 | 529 |
| 11 | 1079 |
| 12 | 1621 |
| 13 | 2609 |
| 14 | 2825 |
| 15 | 3997 |
| 16 | 4235 |
| 17 | 5081 |
| 18 | 7319 |
| 19 | 8365 |
| 20 | 9023 |
| 21 | 10273 |
| 22 | 18095 |
| 23 | 18199 |
| 24 | 22625 |
| 25 | 24535 |
| 26 | 27229 |
| 27 | 28883 |
| 28 | 99877 |