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 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 14 |
| 6 | 19 |
| 7 | 64 |
| 8 | 102 |
| 9 | 111 |
| 10 | 131 |
| 11 | 270 |
| 12 | 299 |
| 13 | 1906 |
| 14 | 3164 |
| 15 | 6551 |
| 16 | 8448 |
| 17 | 15601 |
| 18 | 49320 |
| 19 | 110476 |
| 20 | 120698 |
| 21 | 191270 |
| 22 | 274190 |
| 23 | 360430 |