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 | 6 |
| 2 | 9 |
| 3 | 12 |
| 4 | 14 |
| 5 | 17 |
| 6 | 23 |
| 7 | 44 |
| 8 | 47 |
| 9 | 63 |
| 10 | 84 |
| 11 | 129 |
| 12 | 236 |
| 13 | 278 |
| 14 | 279 |
| 15 | 297 |
| 16 | 647 |
| 17 | 726 |
| 18 | 737 |
| 19 | 2574 |
| 20 | 4233 |
| 21 | 8207 |
| 22 | 16046 |
| 23 | 21983 |
| 24 | 23999 |
| 25 | 24596 |
| 26 | 24849 |
| 27 | 84929 |