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 | 0 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 46 |
| 6 | 59 |
| 7 | 84 |
| 8 | 94 |
| 9 | 124 |
| 10 | 239 |
| 11 | 267 |
| 12 | 366 |
| 13 | 371 |
| 14 | 424 |
| 15 | 616 |
| 16 | 2139 |
| 17 | 2299 |
| 18 | 3523 |
| 19 | 3563 |
| 20 | 3843 |
| 21 | 3923 |
| 22 | 7627 |
| 23 | 12751 |
| 24 | 34798 |
| 25 | 39911 |
| 26 | 56568 |
| 27 | 58779 |