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) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 16 |
| 3 | 41 |
| 4 | 92 |
| 5 | 188 |
| 6 | 359 |
| 7 | 650 |
| 8 | 1128 |
| 9 | 1890 |
| 10 | 3075 |
| 11 | 4878 |
| 12 | 7571 |
| 13 | 11527 |
| 14 | 17254 |
| 15 | 25436 |
| 16 | 36988 |
| 17 | 53122 |
| 18 | 75435 |
| 19 | 106014 |
| 20 | 147573 |
| 21 | 203618 |
| 22 | 278657 |
| 23 | 378453 |
| 24 | 510344 |
| 25 | 683626 |
| 26 | 910031 |
| 27 | 1204301 |
| 28 | 1584896 |
| 29 | 2074841 |
| 30 | 2702765 |