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 | 139 |
| 2 | 1327 |
| 3 | 1381 |
| 4 | 2137 |
| 5 | 2713 |
| 6 | 3613 |
| 7 | 4513 |
| 8 | 5413 |
| 9 | 6133 |
| 10 | 7213 |
| 11 | 9013 |
| 12 | 11317 |
| 13 | 11353 |
| 14 | 12613 |
| 15 | 13009 |
| 16 | 13063 |
| 17 | 13171 |
| 18 | 13441 |
| 19 | 13513 |
| 20 | 13711 |
| 21 | 15313 |
| 22 | 18013 |
| 23 | 21613 |
| 24 | 24133 |
| 25 | 26113 |
| 26 | 31333 |
| 27 | 31513 |
| 28 | 32413 |
| 29 | 34213 |
| 30 | 36013 |
| 31 | 41341 |
| 32 | 41413 |
| 33 | 44131 |
| 34 | 45013 |
| 35 | 51133 |
| 36 | 53113 |
| 37 | 54013 |