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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 6 |
| 10 | 25 |
| 11 | 53 |
| 12 | 47 |
| 13 | 97 |
| 14 | 281 |
| 15 | 280 |
| 16 | 343 |
| 17 | 345 |
| 18 | 1367 |
| 19 | 619 |
| 20 | 2478 |
| 21 | 1504 |
| 22 | 8292 |
| 23 | 1811 |
| 24 | 16742 |
| 25 | 3458 |
| 26 | 48453 |
| 27 | 5459 |
| 28 | 95311 |
| 29 | 9416 |
| 30 | 333739 |