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 | 3 |
| 3 | 9 |
| 4 | 12 |
| 5 | 18 |
| 6 | 19 |
| 7 | 36 |
| 8 | 37 |
| 9 | 49 |
| 10 | 67 |
| 11 | 337 |
| 12 | 893 |
| 13 | 1924 |
| 14 | 8044 |
| 15 | 11610 |
| 16 | 13560 |
| 17 | 18777 |
| 18 | 35376 |
| 19 | 53601 |
| 20 | 56022 |
| 21 | 66488 |
| 22 | 89801 |
| 23 | 190210 |