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 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 12 |
| 6 | 13 |
| 7 | 14 |
| 8 | 23 |
| 9 | 57 |
| 10 | 106 |
| 11 | 226 |
| 12 | 227 |
| 13 | 311 |
| 14 | 373 |
| 15 | 1046 |
| 16 | 1298 |
| 17 | 1787 |
| 18 | 1952 |
| 19 | 2130 |
| 20 | 2285 |
| 21 | 2670 |
| 22 | 3254 |
| 23 | 3642 |
| 24 | 4369 |
| 25 | 13559 |
| 26 | 33418 |
| 27 | 66830 |
| 28 | 213810 |