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 | 37 |
| 3 | 337 |
| 4 | 3257 |
| 5 | 32233 |
| 6 | 322573 |
| 7 | 3223357 |
| 8 | 32235223 |
| 9 | 322222757 |
| 10 | 3222222257 |
| 11 | 32222232577 |
| 12 | 322222232537 |
| 13 | 3222222223333 |
| 14 | 32222222332733 |
| 15 | 322222222237537 |
| 16 | 3222222222223373 |
| 17 | 32222222222223353 |
| 18 | 322222222222225333 |