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 | 2 |
| 2 | 7 |
| 3 | 8 |
| 4 | 10 |
| 5 | 22 |
| 6 | 52 |
| 7 | 58 |
| 8 | 76 |
| 9 | 130 |
| 10 | 143 |
| 11 | 331 |
| 12 | 332 |
| 13 | 980 |
| 14 | 1282 |
| 15 | 1655 |
| 16 | 4031 |
| 17 | 4600 |
| 18 | 18880 |
| 19 | 89482 |
| 20 | 130592 |
| 21 | 323860 |
| 22 | 872171 |
| 23 | 1172480 |