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) |
|---|---|
| 2 | 3 |
| 3 | 19 |
| 4 | 3 |
| 5 | 3 |
| 6 | 73 |
| 7 | 7 |
| 8 | 271 |
| 9 | 1021 |
| 10 | 241 |
| 11 | 3 |
| 12 | 487 |
| 13 | 151 |
| 14 | 2971 |
| 15 | 35839 |
| 16 | 5737 |
| 17 | 1723 |
| 18 | 81943 |
| 19 | 115741 |
| 20 | 307 |
| 21 | 151549 |
| 22 | 231823 |
| 23 | 443431 |
| 24 | 195163 |
| 25 | 9973 |
| 26 | 114913 |
| 27 | 362599 |