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 | 7 |
| 4 | 15 |
| 5 | 13 |
| 6 | 36 |
| 7 | 127 |
| 8 | 255 |
| 9 | 115 |
| 10 | 123 |
| 11 | 247 |
| 12 | 459 |
| 13 | 1189 |
| 14 | 13368 |
| 15 | 23677 |
| 16 | 35556 |
| 17 | 11137 |
| 18 | 122346 |
| 19 | 224578 |
| 20 | 145578 |
| 21 | 112579 |
| 22 | 133449 |
| 23 | 367888 |
| 24 | 11256777 |
| 25 | 13334455 |
| 26 | 1366788 |
| 27 | 112234777 |
| 28 | 234455568 |
| 29 | 11356789 |
| 30 | 112334778 |
| 31 | 1234446778 |
| 32 | 2244567999 |