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 | 3 |
| 2 | 5 |
| 3 | 19 |
| 4 | 37 |
| 5 | 173 |
| 6 | 211 |
| 7 | 227 |
| 8 | 619 |
| 9 | 977 |
| 10 | 1237 |
| 11 | 2437 |
| 12 | 5741 |
| 13 | 13463 |
| 14 | 23929 |
| 15 | 81223 |
| 16 | 121271 |